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 circuit board DDR5 RDIMM module with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 128GB DDR5 6400MHz CL52 1.1V ECC RDIMM 2Rx4 288-Pin Supermicro SYS-222BT-HER memory upgrade

SKU CH-XW5D-A6ZB0

128 GB DDR5 ECC RDIMM running at 6400 MHz with CL52 latency and 1.1 V for Supermicro SYS-222BT-HER servers

  • Total capacity128 GB
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 128GB capacity expands server memory headroom
  • DDR5 6400MHz speed accelerates data throughput
  • CL52 latency optimises registered timing response
  • 1V operation reduces power draw per module
  • ECC RDIMM 2Rx4 design ensures error-corrected reliability

128GB DDR5 RDIMM for Supermicro BigTwin

This 128GB registered DDR5 module targets administrators expanding memory in the Supermicro BigTwin SYS-222BT-HER platform. It delivers ECC protection and registered buffering for stable operation in multi-socket server workloads. The single-module design simplifies capacity scaling in dense 2U nodes.

Fit for registered ECC slots only

The module fits systems that accept 288-pin DDR5 RDIMMs with 2Rx4 organisation and 1.1V operation. It will not work in desktop boards, laptops or any platform requiring unbuffered UDIMMs or non-ECC memory. Buyers needing consumer-form-factor modules should look elsewhere.

128GB per slot at 6400MT/s

One module provides 128GB of addressable capacity at the rated 6400MT/s data rate with CL52 latency. Large virtualisation clusters and in-memory databases benefit from the high per-slot density. Workloads demanding higher frequencies or lower latencies than the specified 6400MT/s CL52 will exceed this module's operating window.

How it compares

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

Price $4,512.99
Pricier than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $35.26 per GB
Pricier than about 90% 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 lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-724K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (1 × 128 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

What server motherboard slot is required to install this 288-pin DDR5 RDIMM?

The module fits a standard 288-pin DDR5 RDIMM slot on the Supermicro SYS-222BT-HER platform.

Will this registered ECC module operate correctly with older unbuffered memory still installed in other channels?

No, registered ECC RDIMMs cannot be mixed with unbuffered memory; all slots must use registered modules for stable operation.

How can I verify the module is running at 6400 MHz with CL52 latency after installation?

Check the BIOS memory information screen or run a tool such as dmidecode to confirm the speed and CAS latency values.

More in Model-Specific Memory Upgrades

Similar items