Connecting a SATA drive to a power supply takes one cable and a few seconds: with the PSU unplugged from the wall, push the flat, keyed SATA power plug into the drive’s power socket. If your PSU is modular, the other end of that cable goes into the PSU’s SATA/peripheral output, and it must be a cable made for that exact PSU. The drive also needs a separate SATA data cable that runs to the motherboard.
SATA power vs. SATA data: two different cables
People often say “SATA cable” for two different things, and mixing them up is the most common reason a new drive does not show up.
As an Amazon Associate I earn from qualifying purchases.
| Cable | Runs from | Runs to | What it does |
|---|---|---|---|
| SATA power | PSU | Drive (SSD, HDD, optical drive or other SATA-powered device) | Supplies power. Wide, flat, keyed connector. |
| SATA data | Drive | Motherboard SATA port | Carries data. Narrower keyed connector. |
Power alone does not make a drive usable. Until the data cable is also connected to the motherboard, the system cannot talk to the drive.
Recommended Free Tools
Step-by-step: connecting SATA power to the PSU
- Power down and unplug. Shut the PC down, switch the PSU off and remove its AC power cord. CORSAIR’s installation instructions specify that the AC cable should not be connected while you install the PSU, and the same discipline applies when you add or change internal power cables.
- Find the SATA power lead. It ends in a flat, wide, keyed plug meant for the power socket on a SATA SSD, HDD, optical drive or similar device.
- Connect the PSU end.
- Non-modular PSU: use the SATA lead that is permanently attached to the PSU. There is nothing to plug in at the PSU side.
- Modular or semi-modular PSU: use the SATA cable supplied with that PSU and plug its PSU-side connector into the output designated for SATA/peripheral cables. Check the labels on the PSU and the model’s manual for which outputs those are.
- Connect the drive end. Line up the keyed plug with the drive’s power socket and press it in gently and evenly. The shape only fits one way, so if it does not align, flip your approach rather than forcing it. Make sure the connection is snug, as manufacturers advise that cables be tightly connected.
- Connect the data cable. If the drive is new, attach its separate SATA data cable between the drive and a SATA port on the motherboard.
- Restore power. Once everything is seated, reconnect the AC cord, switch the PSU on and boot the system.
Where exactly does the cable plug into a modular PSU?
Modular PSUs group their sockets by function, and the sockets are typically labeled on the PSU body. Use the one designated for SATA or peripheral cables, not the ones meant for CPU, PCIe or motherboard power, even if a plug seems to fit. The exact labels and the number of SATA outputs differ by model, so your PSU’s manual is the authority for your unit.
#1 Best Overall
- 1. The SATA Power Splitter Cable: This high-quality cable is designed to split one 15 Pin SATA connector into six separate SATA power connectors, allowing you to easily connect multiple HDD, SSD, and Optical Drives to your system. With this cable, you can efficiently power up to 6 devices simultaneously.
- 2. Wide Compatibility: This 15 Pin SATA to 6 SATA Power Splitter Cable is compatible with various devices such as HDD, SSD, and Optical Drives. Whether you need to power up your storage drives or optical devices, this cable has got you covered.
- 3. Reliable Performance: Our SATA Power Splitter Cable ensures stable power transmission, preventing any interruption in the performance of your connected devices. It effectively delivers power to each individual device, ensuring optimal functionality.
- 4. Easy Installation: With its user-friendly design, this cable allows for easy installation. Simply connect the 15 Pin SATA end to your power supply and plug in the six SATA connectors to your devices. No additional tools or expertise required.
- 5. Durable Construction: Made with high-quality materials, this SATA Power Splitter Cable is built to last. Its sturdy construction ensures long-lasting durability, making it a reliable choice for your power supply needs. Don't settle for anything less than the best quality when it comes to powering your devices.
Do not mix modular cables between PSUs
A modular cable that fits is not necessarily a cable that is safe. CORSAIR explains that the connectors on the component side (drive, motherboard, graphics card) are standardized, but the PSU-side connectors and their wiring can differ. Seasonic similarly warns that PSU-side pinouts can vary between manufacturers and even between product series from the same maker. A wrong pinout can deliver the wrong voltage to the wrong pin, which can damage the drive or the PSU.
“If this power supply uses modular cables, use only manufacturer supplied cables.” — CORSAIR, generic PSU installation manual
Rank #2
Cable Matters 3-Pack 4-Pin Molex to SATA Power Cable, 6 inches
- Flexible SATA Power Cable for Internal Drive Connection: This SATA to Molex cable connects modern Serial ATA HDDs and optical drives to a legacy SATA power supply with 4 pin Molex LP4 ports. A reliable 4 pin Molex to SATA power cable solution for upgrading older PC systems while maintaining stable SATA power delivery.
- 6 Inch SATA Power Cable for Clean Internal Cable Management: Compact 6 inch SATA power cable design provides the ideal length for internal routing. This hdd power cable reduces clutter inside PC cases while ensuring efficient connection between SATA devices and Molex-based power supply units.
- Cost-Effective 3 Pack SATA Power Adapter Set: Includes three SATA power connector adapter cables, providing spare or replacement options for system builds and repairs. Perfect SATA power cable kit for DIY builders, IT technicians, and multi-drive computer installations.
- Ideal Upgrade Solution for Legacy Power Supply Systems: This 4 pin to SATA power cable allows you to reuse older PSUs with Molex outputs as a SATA power supply for modern SATA HDDs, SSDs, and optical drives—eliminating the need to replace a fully functional power unit.
- Stable Compatibility for SATA HDD and Optical Drives: Designed for safe and reliable operation with 5V SATA devices powered by 12V ATX systems. Compatible with common hardware setups including SATA HDDs, SSDs, and DVD drives using a SATA power connector through Molex LP4 input.
That is a general manual; your specific PSU’s manual takes precedence if it says anything different. In practice:
Outdated 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 matchPC 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 & 11- Use the cables that came in the PSU’s box.
- If one is lost or damaged, buy a replacement the PSU maker explicitly lists for your exact model or series.
- Do not reuse cables left over from an old PSU, another brand, or a different series of the same brand.
- Do not buy an unspecified “universal” modular cable.
Example of a model-specific replacement
be quiet! lists its CS-3310 as a one-device SATA power cable and names compatible series including Dark Power Pro 10 and newer, Straight Power 10 and newer, Pure Power 9 and newer, Power Zone and SFX. That is an example of how to check, not a promise that it suits your PSU: read the full current compatibility list for your exact model first. A good search phrase is “replacement SATA power cable for [your PSU model]”.
Rank #3
- 1. The SATA Power Splitter Cable: This high-quality cable is designed to split one 15 Pin SATA connector into two separate SATA power connectors, allowing you to easily connect multiple HDD, SSD, and Optical Drives to your system. With this cable.
- 2. Wide Compatibility: This 15 Pin SATA to 2 SATA Power Splitter Cable is compatible with various devices such as HDD, SSD, and Optical Drives. Whether you need to power up your storage drives or optical devices, this cable has got you covered.
- 3. Reliable Performance: Our SATA Power Splitter Cable ensures stable power transmission, preventing any interruption in the performance of your connected devices. It effectively delivers power to each individual device, ensuring optimal functionality.
- 4. Easy Installation: With its user-friendly design, this cable allows for easy installation. Simply connect the 15 Pin SATA end to your power supply and plug in the two SATA connectors to your devices. No additional tools or expertise required.
- 5. Durable Construction: Made with high-quality materials, this SATA Power Splitter Cable is built to last. Its sturdy construction ensures long-lasting durability, making it a reliable choice for your power supply needs. Don't settle for anything less than the best quality when it comes to powering your devices.
How many drives can one SATA cable power?
Many SATA power leads have several connectors in a row for daisy-chaining drives. No universal limit for how many drives one lead or one PSU output can handle applies to every PSU, so check your manual for model-specific guidance. If you are adding several drives, spreading them across separate leads or outputs is a reasonable approach where the PSU provides them.
Quick Recap
Rank #4
- Premium SATA power extension cable featuring 18 AWG oxygen-free copper construction and bare copper braided shielding, ensuring maximum durability and reliable performance for your computer components
- 15 Pin SATA power connector designed to extend the connection between host power supply and SATA devices, providing flexible cable management solutions for your PC setup
- Professional-grade male to female SATA cable with secure lock connector mechanism prevents accidental disconnections during operation, ensuring stable power delivery
- Universal compatibility with all SSD, hard drives, optical drives and PCIe Express devices equipped with 15 Pin SATA connector, making it a versatile solution for system builders
- Complete 3 pack cable kit includes three 10-inch black SATA cables, perfect for multiple drive installations or keeping spares for future upgrades
If the drive does not appear
- Drive has no power: reseat the SATA power plug at the drive and, on modular units, at the PSU. Confirm the PSU is switched on and the AC cord is connected again.
- Power is fine but the drive is missing: check that the SATA data cable is seated at both the drive and a motherboard SATA port.
- Plug will not go in: check orientation and that you are using a SATA connector rather than a different peripheral connector. Do not force it.
- Using a non-original modular cable: power down immediately and replace it with a cable verified for your PSU.
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.
