The DXP8800 Ultra is the more expandable configuration on paper: it uses a different Intel processor, accepts more memory, and explicitly identifies its PCIe slot as Gen4 x4. The DXP8800 Plus uses the same core-and-thread count, has the same dual 10GbE networking, Thunderbolt 4 connectivity, eight SATA bays, and two M.2 slots. Neither specification sheet establishes a real-world speed advantage, so the choice depends on memory headroom, PCIe disclosure, port layout, and your planned drives and network.
DXP8800 Plus vs Ultra at a glance
The figures below are UGREEN manufacturer specifications from the current detailed product pages checked on October 13, 2026. They are not independent benchmark results. Both systems are sold diskless, so storage drives and any required networking equipment are additional purchases.
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| Specification | DXP8800 Plus | DXP8800 Ultra | What it means |
|---|---|---|---|
| Processor | Intel Core i5-1235U | Intel Core 7 150U | Different CPU models; no head-to-head benchmark is established here. |
| CPU topology | 10 cores, 12 threads | 10 cores, 12 threads | Core and thread counts are listed as identical. |
| Installed memory | 8GB DDR5 | 8GB DDR5 | Both start with the same listed memory. |
| Published maximum memory | 64GB | 96GB | The Ultra has 32GB more stated capacity; verify module compatibility. |
| PCIe expansion | One PCIe x4 slot; generation not stated in the cited current table | One PCIe Gen4 x4 slot | The Ultra provides an explicit generation; the Plus specification does not. |
| Ethernet | 2 × 10GbE RJ45 | 2 × 10GbE RJ45 | Same port count and speed class. |
| Thunderbolt | 2 × Thunderbolt 4 | 2 × Thunderbolt 4 | Shared high-speed peripheral interface. |
| Internal drive expansion | 8 SATA bays and 2 M.2 SSD slots | 8 SATA bays and 2 M.2 SSD slots | Bay and M.2 counts are the same. |
| Maximum capacity on current detailed pages | Up to 272TB | Up to 272TB | Regional Plus listings conflict, so check the listing for your market. |
| Video and card ports | 8K HDMI and SD 4.0 | 8K HDMI and SD 4.0 | Both list the same headline video and card-reader capabilities. |
| USB layout in the cited tables | Rear: 2 × USB-A 10Gb/s and 2 × USB-A 480Mb/s | Front: 1 × USB-A 10Gb/s; rear: 1 × USB-A 10Gb/s and 2 × USB 2.0 | Port placement and the number of faster USB ports differ. |
CPU: different Intel models, not a proven speed gap
The Plus is specified with an Intel Core i5-1235U, while the Ultra is specified with an Intel Core 7 150U. UGREEN lists both as 10-core, 12-thread processors. Those names are the material documented difference; the specification pages do not provide an independent application test, sustained-load measurement, or a controlled comparison between the two NAS units.
That distinction matters because a model name alone cannot tell you how a NAS will perform in your workload. File serving, encryption, thumbnail generation, virtual machines, containers, indexing, and media transcoding can stress different parts of a system. Drive layout, memory pressure, software configuration, thermals, and the client network can all become limiting factors before the CPU is fully occupied.
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How to use the CPU information
- Choose the Ultra if you need the option with the Core 7 150U designation or expect workloads that may benefit from the Ultra’s larger memory ceiling. Treat that as additional headroom, not as proof of a faster result.
- Choose the Plus when its 64GB published ceiling is sufficient and you prefer to base the decision on the shared storage and connectivity platform rather than an untested CPU comparison.
- If transcoding or virtual machines are central to your purchase, look for workload-specific tests for the exact regional SKU and software version. The figures here cannot establish how many streams, virtual machines, or containers either unit will sustain.
Networking: both provide dual 10GbE, with an important client limitation
Each model lists two 10GbE RJ45 ports. UGREEN describes link aggregation as capable of up to 20Gb of total bandwidth when the NAS, switch, cabling, configuration, and clients all support the required arrangement. It also advertises up to 2500MB/s download speed as a vendor figure subject to network setup and equipment; that number is not an independent test result.
Two ports do not turn one ordinary client connection into a 20GbE link. UGREEN’s Plus FAQ states: "A single 10GbE client should not be expected to achieve 20GbE transfer speeds." Aggregation can serve multiple clients or multiple traffic flows, but a single workstation normally remains limited by its own 10GbE interface and the rest of the path.
What you need for useful 10GbE performance
- A 10GbE interface on the client, or an adapter that provides one.
- A switch or direct-link design that supports the required 10GbE topology; two NAS ports alone are not enough for aggregation.
- Appropriate cabling and network configuration.
- Storage that can sustain the requested workload. Eight hard disks, SSD caches, or M.2 devices can produce very different results.
- A workload with enough parallel traffic to use more than one link when aggregation is configured.
Practical network setup sequence
- Install the NAS and connect one 10GbE port to a compatible switch or directly to a 10GbE client.
- Confirm that the interface negotiates at 10Gb/s rather than falling back to a lower speed.
- Test a single client first. This establishes the performance of one path without attributing aggregate figures to a single connection.
- If you have multiple clients or a switch that supports it, configure link aggregation according to the NAS and switch documentation.
- Test simultaneous transfers from separate clients. Compare aggregate throughput with the vendor’s qualified claims, not with a presumed 20GbE result for one workstation.
Expansion: the Ultra clarifies PCIe generation, while the core storage layout is shared
Both units list eight SATA drive bays, two M.2 SSD slots, one PCIe x4 expansion slot, and two Thunderbolt 4 ports. That gives the Plus and Ultra the same stated number of internal drive positions and the same headline high-speed external interface.
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The difference is the wording of the PCIe specification. The Ultra’s current table explicitly identifies its slot as PCIe Gen4 x4. The Plus is listed as PCIe x4, but the cited current table does not state the generation. Do not infer a generation for the Plus from the “x4” designation alone.
What the shared bays support
- The eight SATA bays are the primary bulk-storage expansion area. Because the systems are diskless, you must purchase and install compatible drives separately.
- The two M.2 positions can be used for NVMe SSD storage or whatever roles the NAS software supports. The product specification establishes the slots, not a guaranteed cache or tiering policy for every configuration.
- Thunderbolt 4 provides two external high-speed ports on each model. The specification does not, by itself, promise a particular direct-attach storage or display workflow.
- UGREEN says third-party drive brands are supported but directs buyers to its compatibility list. Compatibility is model-specific; do not assume that every capacity or firmware revision will be approved.
Port-layout differences
The Plus table lists two rear USB-A ports rated at 10Gb/s and two rear USB-A ports rated at 480Mb/s. The Ultra table lists one front USB-A port rated at 10Gb/s, plus one rear USB-A port rated at 10Gb/s and two rear USB 2.0 ports. If you routinely connect a backup disk, card reader, or other accessory at the front of the chassis, the Ultra’s front high-speed port may be more convenient. If your equipment stays in a rack or wiring cabinet, the Plus’s two listed rear 10Gb/s ports may be more useful. Check the exact regional chassis before purchase because the tables describe placement as well as speed.
Memory: the Ultra leaves more upgrade headroom
Both listings start with 8GB of DDR5 memory. UGREEN publishes a maximum of 96GB for the Ultra and 64GB for the Plus. The 32GB difference is the clearest capacity advantage in the specifications.
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Do not treat the maximum as a promise that any generic DDR5 module will work. UGREEN advises checking its compatibility information, and the exact supported module, rank, capacity, and firmware behavior are not established by the figures above. Before ordering an upgrade, identify the precise model and regional SKU, consult the current compatibility list, and confirm whether replacing or adding modules affects support terms.
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When the extra ceiling matters
- Multiple virtual machines or containers can consume memory independently of file-transfer speed.
- Large indexes, metadata-heavy applications, and simultaneous services can benefit from more room before the system relies on storage.
- Users who only need file sharing, backups, and a small number of lightweight services may never approach either published ceiling.
The Ultra’s higher limit is therefore an option-value advantage. It does not prove that an 8GB Ultra is faster than an 8GB Plus in a particular task.
Capacity claims: verify the regional listing
The current detailed US-store specifications list up to 272TB for both models. UGREEN’s Canada Plus page is internally inconsistent: its headline says 208TB, one feature bullet says 256TB, and its technical table says 208TB. Those figures should not be merged into one universal capacity statement.
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Capacity depends on the drives installed, the supported drive list, and the region-specific product page. If you are buying the Plus in Canada or another market with a separate listing, use that market’s current technical table and ask UGREEN to resolve any conflict before placing an order. For a US purchase based on the detailed page checked October 13, 2026, the published figure is 272TB, but it remains a manufacturer specification rather than an independently verified usable-capacity measurement.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Power, drives, and total system cost
UGREEN lists 70.39W for drive access and 28.99W for drive hibernation for both models. These are stated consumption figures; actual draw changes with the number and type of installed drives, network activity, USB devices, SSDs, and workload. They should be used as planning references rather than a guarantee for your electricity bill.
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Drive-selection checklist
- Open the compatibility list for the exact DXP8800 model and region.
- Decide how many SATA bays you will populate initially and reserve capacity for redundancy and replacement drives.
- Confirm whether your planned M.2 devices are supported for the role you intend to use.
- Price the complete disk set, not just the empty NAS enclosure.
- Plan a separate backup target; usable RAID capacity is not a substitute for an independent backup.
Which model fits which buyer?
| Your priority | Better match | Reason | Qualification |
|---|---|---|---|
| Maximum published memory headroom | DXP8800 Ultra | Its stated ceiling is 96GB rather than 64GB. | Confirm compatible modules before purchase. |
| Explicit PCIe generation | DXP8800 Ultra | The slot is identified as Gen4 x4. | The Plus generation is not stated in the cited table; no performance conclusion follows. |
| Two rear 10Gb/s USB-A ports | DXP8800 Plus | Its listed layout places both faster USB-A ports on the rear. | Verify the regional port table. |
| Front high-speed USB access | DXP8800 Ultra | It lists a front USB-A 10Gb/s port. | The Ultra also lists one rear 10Gb/s USB-A port. |
| Dual 10GbE networking | Either | Both list two 10GbE RJ45 ports. | One client should not be expected to receive 20GbE. |
| Eight SATA bays and two M.2 slots | Either | The internal drive-slot counts are the same. | Drive compatibility and cost remain model- and region-specific. |
| Lowest-risk interpretation of capacity | Whichever regional listing is consistent and current | The detailed US pages state 272TB for both. | The Canada Plus page contains conflicting 208TB and 256TB claims. |
A purchase decision in five checks
- Identify the workload. Separate simple file serving and backups from virtual machines, containers, indexing, and transcoding. The specification sheet does not supply workload benchmarks.
- Decide whether 64GB is enough. If you expect sustained memory growth, the Ultra’s 96GB ceiling provides more stated room; otherwise the Plus may meet the requirement.
- Map your network. Count client interfaces, switch ports, cabling, and traffic patterns. Do not buy on the assumption that two NAS ports give one client a 20GbE connection.
- Check expansion details. The Ultra has an explicit Gen4 x4 description, while the Plus only says x4 in the cited table. Confirm the add-in card or device you intend to use is compatible.
- Validate the exact regional SKU. Recheck capacity, port placement, memory support, drive compatibility, availability, and price immediately before ordering.
What the specifications cannot answer
They do not establish that the Ultra is faster, quieter, or more efficient in a particular application. They do not reveal usable RAID capacity after filesystem overhead, the sustained speed of a given drive mix, the behavior of every third-party SSD, or the number of simultaneous services either NAS can run. Those questions require testing with the exact software, drives, network, and configuration you plan to use.
On the evidence available, the Ultra is a specification-led upgrade for buyers who value its 96GB memory ceiling and explicitly identified PCIe Gen4 x4 slot, plus its listed front high-speed USB port. The Plus remains functionally aligned on dual 10GbE, Thunderbolt 4, eight SATA bays, two M.2 slots, and the same listed core-and-thread count. Select between them by matching those documented differences to your expansion plan rather than assuming the Ultra’s name guarantees a benchmark advantage.
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