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 RDIMM, 133 by 30 by 3 mm, single module

SAMSUNG

SAMSUNG M393A1G40DB0-CPB0Q 8GB PC4-2133P ECC RDIMM Server Memory memory upgrade

SKU CH-M0JN-C0QTP

8 GB DDR4 ECC registered DIMM running at 2133 MHz with CL15 latency for validated server motherboards

  • Capacity8GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • ECC protection guards data integrity with built-in parity checking
  • Registered design stabilises signals through on-module registers for reliable server operation
  • DDR4 2133 speed at CL15 latency delivers responsive throughput for demanding workloads
  • 2 V operation reduces power draw and heat in dense memory configurations
  • 8 GB single-rank module fits validated Supermicro X10 platforms via 288-pin DDR4 interface

Server ECC RDIMM upgrade

This 8 GB DDR4 registered DIMM adds error-correcting capacity to compatible server platforms. It operates at 2133 MT/s with CL15 latency and a 1.20 V supply. The module uses a 1Rx4 organisation and includes on-board registers for signal integrity. It targets administrators expanding memory in validated multi-socket systems.

Replaces non-ECC or slower DDR4 modules

The jump is worthwhile when workloads demand data integrity and the motherboard qualifies registered ECC memory. Systems running unbuffered DIMMs or lower-speed PC4-17000 kits gain corrected error handling and registered signalling. Builders needing consumer SO-DIMMs, higher frequencies or non-ECC operation should look elsewhere.

Sustained load behaviour

Registered buffering stabilises command and address lines during continuous multi-threaded throughput. ECC parity detection corrects single-bit errors without halting execution. The 1.20 V rating keeps power draw predictable across full DIMM populations. Modules without registered control or ECC cannot maintain equivalent signal quality under prolonged stress.

Highlights

  • ECC protection guards data integrity with built-in parity checking
  • Registered design stabilises signals through on-module registers for reliable server operation
  • DDR4 2133 speed at CL15 latency delivers responsive throughput for demanding workloads
  • 2 V operation reduces power draw and heat in dense memory configurations
  • 8 GB single-rank module fits validated Supermicro X10 platforms via 288-pin DDR4 interface

Specifications

BrandSAMSUNG
SeriesServer Memory
ModelSAMSUNG:M393A1G40DB0-CPB
SAMSUNG:M393A1G40EB1-CPB
CRUCIAL:CT8G4RFS4213
HYNIX:HMA41GR7MFR4N-TF
KINGSTON:KVR21R15S4/8
Capacity8GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
ChipsetMajor Brand Chipset
Compatible SystemM393A1G40DB0-CPB
FeaturesDual in line memory module with memory
-Includes registers for optimizing clock, command, and control signals
-Error correction is realized by adding 8-bit parity check signal
-Supports X4 / X8 organizations / up to 2 levels per DIMM and 3dpc configuration
-Application: Server

Questions about this item

Will this 288-pin DDR4 RDIMM fit in a standard server DIMM slot?

The module is 133 mm long, 30 mm high and 3 mm thick, matching the 288-pin DDR4 RDIMM form factor used in validated boards such as the MBD-X10DAC and MBD-X10DRG-H.

What is the correct way to seat this registered ECC module, and what step do installers often miss?

Align the off-centre notch with the slot key, press straight down until both side latches click, then verify the BIOS reports 2133 MT/s at CL15 and 1.20 V.

When should this 8 GB 1Rx4 module be replaced?

Replace the module if the system logs uncorrectable ECC errors, if memory diagnostics report persistent failures, or when a capacity upgrade requires higher-density DIMMs.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.