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Green 240-pin DDR3L UDIMM with black memory chips and a product label

A-Tech

A-Tech 4GB DDR3L 1600 ECC UDIMM 2Rx8 1.35V Samsung M391B5273CH0-YK0 M391B5273DH0-YK0 Server Memory

SKU CH-G8V7-FTFXQ

4GB DDR3L 1600 ECC UDIMM 2Rx8 1.35V module replaces Samsung M391B5273CH0-YK0 and M391B5273DH0-YK0 server memory

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • ECC protection prevents data corruption in server workloads
  • DDR3L 1600 MHz speed delivers responsive multitasking performance
  • Low 1.35V voltage reduces power draw and heat output
  • 240-pin UDIMM form factor fits compatible server motherboards
  • Direct replacement for Samsung M391B5273CH0-YK0 and M391B5273DH0-YK0 modules

4GB DDR3L 1600 ECC UDIMM

This 4GB DDR3L 1600 ECC UDIMM module operates at 1.35V with CL11 latency and a 2Rx8 organisation. It is built for servers and workstations that require error-correcting unbuffered memory in the 240-pin DIMM form factor. The part replaces Samsung M391B5273CH0-YK0 and M391B5273DH0-YK0 modules. Each stick is tested for reliability before shipping.

Suits systems needing low-voltage ECC unbuffered

Administrators upgrading or repairing servers that specify DDR3L 1600 ECC UDIMM memory will find this module a direct match. It is not suitable for platforms that require registered or load-reduced DIMMs, for boards limited to standard 1.5V DDR3, or for consumer desktops that cannot use ECC memory. Buyers needing larger single-module capacities should verify their system's maximum supported density first.

1.35V DDR3L voltage decides compatibility

The 1.35V operating voltage is the critical specification; systems designed only for 1.5V DDR3 may not support this low-voltage module. Confirm the motherboard or server documentation lists DDR3L 1600 (PC3L-12800) ECC UDIMM support before purchase. The 2Rx8 rank structure and CL11 timing must also align with the platform's memory controller requirements.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 94% of the 6,523 comparable items (median $188.99).
Total capacity 4 GB
Lower than about 95% of the 6,064 comparable items (median 32 GB).
Price per GB $5.25 per GB
Cheaper than about 71% of the 6,064 comparable items (median $7.25 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 nameA-Tech
Total capacity4 GB
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.35 V

Questions about this item

What motherboard slot does this 240-pin DDR3L UDIMM require?

This module fits a standard 240-pin DDR3 DIMM socket that accepts 1.35 V DDR3L memory.

Will this ECC UDIMM run in a system that currently uses non-ECC DDR3 1600 sticks?

The board must support ECC UDIMM operation; mixing ECC and non-ECC modules is not recommended and may prevent the ECC feature from functioning.

How can I confirm the module is detected at the correct 1600 MHz speed after installation?

Check the BIOS memory information or use a tool such as CPU-Z to verify the module reports DDR3-1600 (PC3L-12800) at CL11.

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