Zettlab D6 Ultra vs UGREEN iDX6011
Updated
Which should you buy?
If you are buying now, the UGREEN iDX6011 is the one you can actually get in the UK, with the same Core Ultra 5 125H, six bays and dual 10GbE. The Zettlab D6 Ultra's advantage is upgradeable memory to 96GB, but it was still a sold-out pre-order without UK shipping in October 2026.
What is the difference between the D6 Ultra and the iDX6011?
These are close rivals built on the same Intel Core Ultra 5 125H, with Arc graphics, an 11 TOPS NPU, six bays, two M.2 slots and two 10GbE ports. Both ship with a local AI assistant in their own operating system: UGREEN's Uliya on UGOS Pro, and the ZettOS assistant with downloadable open models.
The biggest difference is memory. The iDX6011 has soldered LPDDR5X, sold as 32GB or 64GB and never upgradeable. The D6 Ultra uses DDR5 SO-DIMMs, ships with 32GB or none, and accepts up to 96GB, which moves it from 32B class models to 70B class models at 4-bit (Estimated).
GPU expansion differs as well. The UGREEN has an internal PCIe Gen4 x8 slot and UGREEN documents NVIDIA card support. The Zettlab has an external PCIe 4.0 x8 connector, and its own documentation says external GPUs are not recommended without official confirmation.
The rest favours the UGREEN today: it is on sale in the UK through Amazon and UGREEN's store, carries a three-year warranty against Zettlab's two, and has a longer track record for software updates.
Choose the Zettlab D6 Ultra if
You want the most memory headroom from a Core Ultra platform and are willing to wait for the Ultra models to ship and arrange import. Running 70B class models on the NAS is the goal, so upgradeable memory matters more to you than availability.
Choose the UGREEN iDX6011 if
You want to buy a Core Ultra AI NAS in the UK now, with a UK warranty and a supported internal GPU slot. 64GB covers your models, and UGREEN's assistant, photo AI and semantic search are what you plan to use.
How do the specifications compare?
Every figure comes from the system's own record, with sources on each system page. The better figure in each row is marked.
Price
Compute
Memory
Storage
Connectivity
Software
AI
Other
Which can run bigger local models?
The Zettlab D6 Ultra reaches 96GB of memory against 64GB on the UGREEN iDX6011. That is the difference between 70B class models at 4-bit with room left for longer context and 32B class models comfortably, and 70B class models at 4-bit with little headroom (Estimated). The largest 4-bit model each can hold is roughly 146B and 93B parameters, after leaving 8GB for the operating system.
For GPU acceleration, the Zettlab D6 Ultra offers pcie x8 slot, while the UGREEN iDX6011 offers pcie x8 slot. A discrete card with its own memory is the biggest single speed upgrade for local models, so this matters more than CPU cores for anyone planning to run 14B models or larger.
The Zettlab D6 Ultra has a 11 TOPS NPU; The UGREEN iDX6011 has a 11 TOPS NPU. NAS NPUs help vendor features such as photo recognition and search, but most open-source LLM runtimes do not use them yet.
What do they cost in the UK right now?
Live Amazon UK prices, each with the time it was last verified. Where a system has no verified Amazon UK offer, its Amazon US price is shown in dollars and marked.
| System | Price | Stock | Buy |
|---|---|---|---|
 | No verified price | Not shipping yet | |
 | £1,999.99 Amazon UK · Verified | In stock | View Deal |
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.co.uk or Amazon.com, as applicable, at the time of purchase will apply to the purchase of this product.
D6 Ultra vs iDX6011 questions
Which is better for local LLMs, the D6 Ultra or the iDX6011?
The Zettlab D6 Ultra scores higher on the AINAS Local LLM profile (78 against 71), which weights memory and GPU options most heavily.
Which has faster networking?
The Zettlab D6 Ultra has 2 x 10GbE as its fastest port and the UGREEN iDX6011 has 2 x 10GbE.
Which has more storage?
The Zettlab D6 Ultra has 6 drive bays and 2 M.2 slots; the UGREEN iDX6011 has 6 bays and 2 M.2 slots.
How long is the warranty on each?
2 years on the Zettlab D6 Ultra and 3 years on the UGREEN iDX6011, according to the manufacturers.
Want to add a third system? Open this comparison in the compare tool.