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 240-pin DDR3 UDIMM with black memory chips and gold contacts

A-Tech

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

SKU CH-WF23-7GHT5

4GB DDR3 1600 ECC UDIMM module replaces Micron MT18JSF51272AZ-1G6 with CL11 latency and 1.5V operation

  • Capacity4GB
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • 4GB capacity adds memory headroom for heavier workloads
  • DDR3 1600 speed delivers PC3-12800 bandwidth for responsive operation
  • ECC unbuffered design detects and corrects single-bit errors automatically
  • 2Rx8 dual-rank organisation increases density per DIMM slot
  • 5V standard voltage ensures broad server platform compatibility

A-Tech 4GB DDR3 1600 ECC UDIMM

This 4GB DDR3 module runs at 1600MHz with CL11 latency and standard 1.5V operation. It uses a 240-pin UDIMM form factor and includes ECC error correction for data integrity. The dual-rank 2Rx8 design uses major-brand chips and is tested for server and workstation reliability.

Suited for servers needing ECC UDIMM memory

This module fits systems that accept unbuffered ECC DDR3 DIMMs at 1600MHz. It is not for platforms requiring registered or load-reduced DIMMs. Buyers needing higher capacities per slot or registered memory support should look at different module types.

4GB capacity for light workloads

The single 4GB module handles basic server tasks, virtualisation hosts with modest memory needs, and legacy workstation upgrades. It runs out quickly with large databases, heavy virtualisation, or memory-intensive analytics that demand more than a few gigabytes per channel.

Highlights

  • 4GB capacity adds memory headroom for heavier workloads
  • DDR3 1600 speed delivers PC3-12800 bandwidth for responsive operation
  • ECC unbuffered design detects and corrects single-bit errors automatically
  • 2Rx8 dual-rank organisation increases density per DIMM slot
  • 5V standard voltage ensures broad server platform compatibility

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

My motherboard takes DDR3 1600 ECC UDIMM — will this 240-pin module seat correctly?

Yes, the module uses the standard 240-pin DDR3 DIMM form factor and runs at 1.5 V, so it fits any board that accepts DDR3 1600 ECC UDIMM.

Can I mix this CL11 2Rx8 stick with my existing CL9 1Rx8 DDR3 1600 ECC UDIMM?

Mixing ranks and latencies is possible but the system will run all modules at the slowest timing and may limit maximum capacity; check your board manual for supported rank populations.

How can I confirm the module is operating at DDR3 1600 with ECC active after install?

Enter the BIOS or use a tool such as CPU-Z to verify the memory frequency shows 800 MHz (DDR3 1600) and that ECC status reads enabled.

Also in this aisle

People compared these

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