We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green 288-pin DDR4 UDIMM module, black chips, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 3200 ECC UDIMM CL22 2Rx8 1.2V 288-pin memory upgrade

SKU CH-6VB8-CH6QX

16GB DDR4 3200 ECC UDIMM CL22 2Rx8 1.2V 288-pin module validated for Lenovo ThinkSystem Intel servers

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection maintains data integrity with built-in error correction
  • 3200 MHz DDR4 speed delivers responsive server performance
  • 16 GB capacity expands Lenovo ThinkSystem memory
  • 2 V operation reduces power draw in enterprise workloads
  • 288-pin UDIMM fits compatible Lenovo Intel-based servers

Lenovo ThinkSystem ECC UDIMM

This 16GB DDR4 3200 module is built for Intel-based Lenovo ThinkSystem servers and workstations. It carries ECC error correction and runs at 1.2V without a heat spreader. The single 2Rx8 rank fits standard 288-pin UDIMM slots. It matches Lenovo part 4X77A77495 for direct replacement.

Suited for compatible Lenovo platforms only

Administrators expanding memory in supported ThinkSystem servers will find this module validated for that environment. Builders using non-Lenovo motherboards, consumer desktops, or laptops should look elsewhere because the firmware and timing are tuned for specific Lenovo Intel platforms. Systems requiring registered or load-reduced DIMMs cannot use this unbuffered design.

ECC unbuffered DDR4 3200 with CL22

The decisive specification is the combination of ECC, unbuffered signalling, and CL22 latency at 3200 MT/s. That trio determines whether the server memory controller will accept the module without errors. Verify the platform requires exactly this ECC UDIMM profile before ordering.

How it compares

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

Price $123.99
Cheaper than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.75 per GB
Typical for this category: the median of 20,941 items is $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 lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR4 3200 MHz ECC Unbuffered UDIMM
Part numberME25600-628K1
Total capacity16 GB
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items16 GB (1 × 16 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN ECC Unbuffered UDIMM

Questions about this item

Will this 288-pin DDR4 UDIMM fit my Lenovo ThinkSystem server?

Yes — it is built for Lenovo ThinkSystem servers using 288-pin DDR4 ECC UDIMM slots.

What is the correct way to seat the module, and what step do people often miss?

Align the notch with the slot key, press straight down until both side clips click, then verify in BIOS that the 3200 speed and ECC are active.

When should I replace this 16 GB ECC module?

Replace it if the system logs uncorrectable ECC errors or if a DIMM fails the built-in memory self-test at boot.

More in Model-Specific Memory Upgrades

Similar items