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 printed circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 4GB DDR3 1600MHz ECC UDIMM 2Rx8 Server RAM

SKU CH-XT0Q-21TY4

4GB DDR3 1600MHz ECC UDIMM server memory module with CL11 latency and 1.5V operation

  • Capacity4GB
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ECC protection guards data integrity in server workloads
  • DDR3 1600 MHz speed delivers responsive multitasking
  • 4 GB capacity adds memory headroom for demanding tasks
  • 240-pin UDIMM form factor fits compatible HP server slots
  • Lifetime warranty and US-based support back every module

Compatible HP Server Upgrade

This 4GB DDR3 1600MHz ECC UDIMM module replaces specific HP part numbers including 662609-571, 662609-574, 669238-071, 669322-B21, 669322-B212, 682413-001, 684034-001 and A2H32AV. It uses a 240-pin DIMM form factor and operates at the standard 1.5V voltage for DDR3 memory.

For ECC UDIMM Slots Only

Suitable for servers and workstations that accept unbuffered ECC DDR3 memory at PC3-12800 speed. Builders needing registered DIMMs, higher capacities, or different voltage requirements should verify their system documentation before ordering.

2Rx8 Rank Configuration

The dual-rank 2Rx8 organisation with CL11 latency determines compatibility with the memory controller. Systems requiring single-rank modules or a different rank structure will not support this stick.

Highlights

  • ECC protection guards data integrity in server workloads
  • DDR3 1600 MHz speed delivers responsive multitasking
  • 4 GB capacity adds memory headroom for demanding tasks
  • 240-pin UDIMM form factor fits compatible HP server slots
  • Lifetime warranty and US-based support back every module

Specifications

BrandA-Tech
Capacity4GB
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.50V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions about this item

How much power does the 1.5V DDR3 module draw when the server runs all day?

The module operates at the standard DDR3 voltage of 1.5V; actual power draw depends on your server's workload and memory-controller efficiency.

What must my motherboard provide to run this 240-pin ECC UDIMM?

A DDR3 DIMM slot that supports unbuffered ECC memory at 1600 MHz and can accept a 2Rx8 4 GB module.

Will this CL11 DDR3 stick work alongside older CL9 DDR3 modules I already have?

The system will run all modules at the slowest common speed and highest latency; mixing CL11 with CL9 means the CL9 sticks will operate at CL11 timings.

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

Also in this aisle

People compared these

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