Free tools Windows power users keep installed
One-click scans. No signup required.
Connect the DG310’s fixed USB-C host cable to a handheld that supports USB-C DisplayPort Alt Mode and USB Power Delivery, connect your monitor and accessories to the dock, then plug in a separate USB-C PD charger. The dock can pass through up to 80 W when paired with a 100 W-or-higher charger, and its HDMI 2.1 output is rated for up to 4K at 144 Hz or 8K at 30 Hz, subject to the handheld, cable and display.
What you need before connecting the DG310
The DG310 is a single-cable USB-C dock. Its fixed 60 cm cable carries video, USB data and charging between the dock and the handheld, but that works only when the handheld’s USB-C port supports both USB-C DisplayPort Alt Mode and USB Power Delivery. ASUS states that compatible operating systems do not need a separate dock driver.
As an Amazon Associate I earn from qualifying purchases.
Prepare these items:
- ROG Bulwark Dock DG310.
- A ROG Ally, Steam Deck or another handheld with USB-C DisplayPort Alt Mode and USB Power Delivery.
- One HDMI cable and a monitor or TV with an available HDMI input. Use an HDMI 2.1 cable if you are targeting high refresh rates or 8K output.
- A USB-C PD charger for the dock. ASUS does not include one and recommends a charger rated at 100 W or higher for the dock’s full 80 W passthrough capability.
- Optional USB peripherals, such as a controller, keyboard, mouse or storage drive.
- An Ethernet cable if you want a wired network connection.
Place the dock on a stable, ventilated surface before plugging anything in. The host cable is permanently attached, exits at a 90-degree angle and is 60 cm long, so position the handheld close enough that the plug reaches without bending or pulling on the connector.
DG310 ports and limits at a glance
Knowing what each port can do prevents the most common setup mistakes. The DG310 has one host USB-C cable, one USB-C power input, one HDMI output, three USB-A data ports and Gigabit Ethernet.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
| Connection | What it does | Published specification or limit |
|---|---|---|
| Fixed USB-C host cable | Connects to the handheld and carries display, USB data and charging functions | 60 cm cable; host must support USB-C DisplayPort Alt Mode and USB Power Delivery |
| HDMI output | Connects one external TV or monitor | HDMI 2.1; up to 3840 × 2160 at 144 Hz or 7680 × 4320 at 30 Hz, with HDR, VRR and ALLM support when the rest of the system also supports those features |
| USB-C power input | Accepts the handheld’s USB-C PD charger for dock passthrough | Use a 100 W-or-higher USB-C PD charger for up to 80 W passthrough |
| Three USB-A ports | Connect controllers, keyboard, mouse and USB storage | USB 3.2 Gen 1-class 5 Gbps operation; two ports are rated 5 V/0.9 A and one is rated 5 V/1.5 A |
| Ethernet | Provides a wired network connection | Gigabit Ethernet |
There is only one HDMI output. The DG310 is therefore a one-external-display dock; it cannot independently drive two monitors from its built-in video output.
ASUS lists the dock at 181.6 × 86.6 × 31.6 mm and approximately 262 ±10 g. The box contains the dock, a user manual and a warranty card. A charging brick is not in the box.
Connect a ROG Ally step by step
1. Position the dock and Ally
Set the dock on a firm surface with enough room for the HDMI, power, USB and Ethernet plugs. Put the ROG Ally where the fixed cable can reach its USB-C port naturally. Do not let the cable suspend the handheld’s weight or force the connector sideways.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →2. Connect the display
Plug an HDMI cable into the DG310’s HDMI 2.1 port and the other end into the monitor or TV. Use the display’s HDMI input that supports the desired resolution and refresh rate; some televisions reserve their highest-bandwidth features for a specific HDMI socket. Leave the display powered on or in standby while completing the rest of the connections.
3. Add USB peripherals and network
Connect a controller, keyboard, mouse or storage device to any of the three USB-A ports. All three run at up to 5 Gbps, but two provide up to 5 V/0.9 A while one provides up to 5 V/1.5 A. Put a higher-draw accessory on the 1.5 A port when practical, and remember that several bus-powered devices share the dock’s available power.
For wired networking, connect an Ethernet cable to the dock’s Gigabit Ethernet port. The Ally should expose the wired adapter through the single USB-C connection once the host cable is attached.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
4. Connect power to the dock
Plug your USB-C PD charger into the dock’s USB-C power input. A 100 W-or-higher charger is the practical choice if you want the published maximum of up to 80 W delivered through the dock. Lower-rated chargers may still operate the dock, but the handheld can receive less power, particularly while gaming or while several USB devices are active.
The charger is connected to the dock, not directly to a second USB-C port on the Ally. The dock then passes negotiated USB Power Delivery to the handheld through the host cable.
5. Attach the host cable
Insert the fixed USB-C host plug into the Ally’s USB-C port. Push it in fully and keep the cable free of tension. The single connection should carry display output, USB peripherals, Ethernet and charging when the Ally and its port support the required standards.
6. Select the input and configure Windows
Choose the HDMI input used by the dock on the monitor or TV. Windows on the Ally should detect the external display without a dock-specific driver. Open Settings > System > Display to choose whether to duplicate, extend or show the desktop only on the external screen. Select the external display, open Advanced display, and choose a resolution and refresh rate that both the Ally and the display support.
If you are aiming for HDR, variable refresh rate or automatic low-latency mode, enable the relevant option on the display as well as in Windows or the game. The dock can carry those signals, but it cannot add a feature that the handheld, HDMI cable, monitor or TV does not provide.
PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchConnect a Steam Deck using Valve’s recommended order
1. Connect everything to the dock first
Valve’s Steam Support guidance is to plug the display, peripherals, Ethernet and power into the dock before attaching the dock to the Steam Deck. Connect the HDMI cable, USB devices, Ethernet cable and USB-C PD charger in that order or in any order before the host connection. This gives the Deck a complete dock configuration to enumerate when it connects.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
2. Verify the charger and port requirements
Steam Deck docking requires USB-C Power Delivery passthrough for charging. The Deck’s USB-C port must also support display functions such as DisplayPort Alt Mode. The DG310 cannot convert a USB-C port that lacks those capabilities into a video output.
3. Attach the DG310 to the Deck
Once the dock is populated, connect its fixed USB-C host cable to the Steam Deck. Keep the cable straight enough to avoid strain, especially when the Deck is resting on a stand or in a case. The Deck should then detect the HDMI display and USB accessories.
4. Choose the external display mode
On the Steam Deck, open the display controls from the desktop environment to set the external monitor’s resolution, refresh rate and arrangement. In Gaming Mode, return to the game after the display is active and select a resolution and frame-rate target the Deck can actually render. The DG310’s HDMI specification is an output ceiling, not a guarantee that every Deck game will run at 4K or 144 Hz.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteBecause the DG310 has one HDMI output, this workflow supports one external display at a time. The Deck’s own screen can remain available depending on the selected display mode, but the dock does not provide a second external video output.
What resolution and refresh rate should you expect?
ASUS rates the DG310’s HDMI 2.1 output for up to 3840 × 2160 at 144 Hz or 7680 × 4320 at 30 Hz. HDR, VRR and ALLM are also listed. Those figures describe what the dock can transport under suitable conditions; the achieved mode is determined by the complete chain:
- Handheld graphics and USB-C implementation: The Ally or Deck must generate the selected signal and expose it through DisplayPort Alt Mode.
- HDMI cable: A cable without enough bandwidth can force a lower refresh rate or resolution. Use an HDMI 2.1-rated cable when targeting 4K at high refresh rates or 8K.
- Display input: A monitor or TV may support its maximum refresh rate only on a particular HDMI socket or only after an enhanced HDMI mode is enabled in its menu.
- Operating-system settings: Windows or SteamOS can default to a safe mode until you select the desired rate manually.
- Game workload: A display may be set to 4K/144 Hz even when a game renders at a lower resolution or frame rate.
For a practical setup, begin with the display’s native resolution at 60 Hz. After the picture is stable, raise the refresh rate, enable HDR or VRR, and test each change separately. This makes it clear which setting introduces a blank screen or instability.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Power, charging and the 80 W passthrough figure
The DG310 does not include a charger. ASUS recommends a USB-C PD charger rated at 100 W or higher to reach up to 80 W passthrough. The 100 W requirement refers to the charger’s output rating; the dock does not send 100 W to the handheld. Part of the power budget runs the dock and attached peripherals, while the published maximum available to the handheld is 80 W.
Connect the charger to the dock before connecting the host cable when you are following the Steam Deck workflow. On an Ally, connecting power before the host cable also makes it easier to confirm that the dock is negotiating power as soon as the handheld appears.
- Use a USB-C PD charger, not a basic USB phone charger that lacks the required PD profiles.
- Check that the charger’s 100 W rating is available from a single USB-C port if it has multiple outputs; some multi-port chargers reduce one port’s output when another device is connected.
- If the handheld reports slow charging or continues to discharge during a demanding game, disconnect unnecessary USB devices and verify the charger’s negotiated output.
- Do not treat an 80 W passthrough claim as a performance guarantee. The handheld’s firmware, battery state, thermal policy and game load can change charging behavior.
Troubleshoot a monitor that is not detected
No picture and no display detection
- Confirm that the monitor or TV is powered on and switched to the HDMI input used by the DG310.
- Unplug and firmly reseat the HDMI cable at both ends.
- Disconnect the DG310’s host cable from the handheld, wait a few seconds, and reconnect it fully.
- Check that the HDMI cable is capable of the mode you selected. For basic troubleshooting, set the display to a lower resolution and 60 Hz.
- Verify that the handheld’s USB-C port supports DisplayPort Alt Mode and USB Power Delivery. A USB-C connector by itself does not establish those capabilities.
- Test the dock with the display powered on and connected before attaching the host cable, especially with a Steam Deck.
If the external screen appears in the operating system but remains black, select the display in the system’s display settings and choose a conservative resolution and refresh rate. A mode outside the display’s supported range can look like a dock failure even though the connection is active.
The picture works but USB devices do not
Remove all USB accessories, reconnect the host cable, and then add devices one at a time. A single faulty cable or storage device can interfere with enumeration. If a device requires more power than a USB-A port can provide, move it to the port rated at 5 V/1.5 A or use its own powered supply. The three ports share the dock’s connection to the handheld, so several simultaneous transfers can also reduce available bandwidth.
Ethernet is missing
Check that the Ethernet cable clicks into the dock and the router or switch, then inspect the handheld’s network settings for a wired adapter. Reconnect the host cable after the dock is powered. If Wi-Fi remains active, temporarily disable it to confirm that traffic is using the wired connection.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →The handheld is not charging
Make sure the charger is plugged into the dock’s USB-C power input rather than a data-only port, and confirm that the charger supports USB PD. Try connecting the charger before the host cable. If charging is intermittent, remove high-draw peripherals, test with a 100 W-or-higher charger, and check for tension on the fixed host cable.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
High refresh rate or HDR is unavailable
First confirm that the display’s HDMI input is configured for its enhanced or high-bandwidth mode. Replace an older HDMI cable with an HDMI 2.1-rated cable, then select the refresh rate in the handheld’s display settings. If the option still does not appear, the handheld or display may be the limiting component even though the dock supports the higher signal.
How to compare the DG310 with another dock
If you are deciding between the DG310 and a different handheld dock, compare the specifications that affect your actual setup rather than counting ports alone.
| Comparison point | Why it matters | DG310 information |
|---|---|---|
| Host compatibility | Determines whether video, data and charging work through one cable | Requires USB-C DisplayPort Alt Mode and USB Power Delivery |
| Charging passthrough | Sets how much power can reach the handheld while gaming | Up to 80 W with a suitable charger; ASUS recommends 100 W or higher |
| Video output | Controls resolution, refresh rate and feature support | One HDMI 2.1 output; up to 4K/144 Hz or 8K/30 Hz, with HDR, VRR and ALLM listed |
| USB ports | Affects accessory count, speed and power availability | Three USB-A ports at 5 Gbps; two rated 0.9 A and one rated 1.5 A |
| Network | Useful for stable downloads, multiplayer and streaming | Gigabit Ethernet |
| Included charger | Changes the out-of-box cost and setup time | No charger included |
| Cable design | Determines fit and strain with a stand or protective case | Fixed 60 cm USB-C cable at a 90-degree exit angle |
| Display count | Important for desk setups with multiple monitors | One external HDMI display |
| Physical fit | Determines whether the dock and handheld sit securely together | 181.6 × 86.6 × 31.6 mm; approximately 262 ±10 g |
A dock with more connectors is not automatically better for an Ally or Deck. Confirm that its host port supports the required video standard, that its charger can meet your handheld’s power needs, and that its cable reaches your preferred playing position without strain.
Accessories worth adding
A 100 W-or-higher USB-C PD charger
This is the essential addition because the DG310 ships without a charger. Choose a model that explicitly supports USB-C Power Delivery and can supply 100 W from the port you will use. That specification gives the dock the input headroom ASUS recommends for up to 80 W passthrough.
An HDMI 2.1 cable
An HDMI 2.1-rated cable is sensible when your target is 4K at 120 or 144 Hz, 8K at 30 Hz, HDR or VRR. It is not required for every 1080p or 4K/60 setup, but it removes a common bandwidth limitation when troubleshooting a high-refresh display.
Powered USB accessories
Controllers, keyboards and mice normally use little power. Portable hard drives, capture devices and other high-draw hardware may work more reliably with their own power source, particularly when the handheld is also charging and the display is running at a high mode.
Safe shutdown and reconnect routine
Before moving the handheld, eject USB storage through the operating system and close applications that are actively using the external display or network. Disconnect the host cable only after transfers have stopped. For a recurring desk setup, leave the HDMI, Ethernet, peripherals and charger attached to the dock; with a Steam Deck, reconnect the dock to the Deck only after those accessories are already in place, following Valve’s recommended order.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
If you change from a television to a monitor, reconnect the HDMI cable and select the new input before attaching the handheld. Start at a conservative display mode, then enable higher refresh rate, HDR or VRR once the basic connection is stable.
Bottom line: is the DG310 suitable for an Ally or Steam Deck?
The DG310 is suitable when the handheld’s USB-C port supports DisplayPort Alt Mode and USB Power Delivery. Its single host connection can provide display, peripherals, Ethernet and charging, while HDMI 2.1 gives it enough stated bandwidth for up to 4K/144 Hz or 8K/30 Hz. Plan for a separate 100 W-or-higher USB-C PD charger, remember that only one external display is supported, and treat the maximum video and charging figures as system-dependent limits rather than guarantees for every handheld, cable or monitor.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
