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Green 288-pin DDR5 UDIMM module with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 32GB DDR5 4800 CL40 1.1V 2Rx8 288-Pin UDIMM QNAP TS-H1277AXU-RP memory upgrade

SKU CH-MT3M-N9R3E

A 32 GB DDR5 module at 4800 MT/s with CL40 latency, 1.1 V operation and 2Rx8 organisation, built for the QNAP TS-H1277AXU-RP NAS

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 32GB

  • 32GB capacity expands NAS storage headroom for heavy workloads
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • CL40 latency supports responsive multitasking on QNAP TS-H1277AXU-RP
  • 1V operation reduces power draw and heat output
  • 288-pin UDIMM form factor ensures direct compatibility with the NAS

32GB DDR5 UDIMM for QNAP NAS

This 32GB DDR5 4800 module is built for the QNAP TS-H1277AXU-RP. It runs at 1.1V with CL40 timing and a 2Rx8 layout. The unbuffered, non-ECC design fits standard 288-pin desktop slots in that NAS.

Upgrade from lower capacity or slower DDR5

Adding this single 32GB stick increases total memory for heavier workloads. The jump is worth it when the NAS hits its current limit during virtualization or large file transfers.

Tool-free installation in minutes

The UDIMM seats directly into the NAS memory slot without cables or brackets. Most issues come from not seating the module fully or mixing it with incompatible speeds. Always check the QNAP manual for slot order.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $458.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $14.34 per GB
Pricier than about 61% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineQNAP NAS Compatible Series Memory
Model nameQNAP DDR5 4800 MHz Non-ECC Unbuffered UDIMM NAS Memory
Part numberMD38400-328K1
Total capacity32 GB
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsQnap
In the box
Included items32 GB (1 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM

Other versions of this model

5 more in the same range

Questions about this item

Will the 288-pin DDR5 module fit the memory slots on my QNAP TS-H1277AXU-RP?

Yes. The stick is a standard 288-pin DDR5 UDIMM, which matches the slot type used by the TS-H1277AXU-RP.

What is the correct way to seat the module so the system recognises the full 32 GB?

Align the notch with the slot key, press straight down until both retention clips click, then verify in BIOS that the capacity shows 32 GB at 4800 MT/s.

Does the lack of a heat spreader mean I need to add cooling later?

No. The module runs at 1.1 V without a spreader; standard chassis airflow over the DIMM slots is sufficient for normal NAS workloads.

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