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Green circuit board DDR4 UDIMM with black chips and gold contacts

A-Tech

A-Tech 8GB DDR4 3200 ECC UDIMM 1Rx8 CL22 Server Memory

SKU CH-W0XA-MJ7RB

An 8 GB DDR4 3200 ECC unbuffered UDIMM with CL22 timing for server and workstation upgrades

  • Total capacity8 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 8 GB capacity handles heavier workloads
  • DDR4 3200 speed accelerates data throughput
  • ECC unbuffered design detects and corrects memory errors
  • 2 V operation keeps power draw low
  • 288-pin DIMM fits standard DDR4 server slots

8GB DDR4 3200 ECC UDIMM for servers

This 8GB DDR4 3200 ECC unbuffered DIMM is built for server and workstation systems that require error-correcting memory. It operates at 1.20V with a CAS latency of CL22 and uses a single-rank 1Rx8 organisation. The module is a compatible replacement for Hynix HMA81GU7DJR8N-XN and HMAG68EXNEA parts.

DDR4 3200 speed and ECC constraints

The module runs at DDR4 3200 (PC4-25600) and provides ECC protection only on platforms that support unbuffered ECC UDIMMs. Consumer desktop chipsets typically ignore the ECC function or refuse to boot with ECC modules installed. Maximum bandwidth and error correction are limited to the DDR4 3200 standard and the CL22 timing.

Verify 288-pin DDR4 slot and ECC support

Confirm that your motherboard has DDR4 288-pin DIMM slots and explicitly supports unbuffered ECC memory in its specification list. Check the qualified vendor list for 1Rx8 modules at 3200 MT/s and 1.20V. Systems limited to non-ECC or registered DIMMs will not work with this module.

How it compares

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

Price $121.99
Cheaper than about 61% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $15.25 per GB
Pricier than about 75% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Hynix
Model nameHMA81GU7DJR8N-XN, HMAG68EXNEA
Total capacity8 GB
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL22
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Power
Rated voltage1.2 V

Questions about this item

Should I pick this 8 GB module or look for a different capacity?

This listing is a single 8 GB DDR4 3200 ECC UDIMM; add one module per available slot to reach your desired total memory.

What does the 3200 MHz rating deliver in a live server?

The module runs at DDR4 3200 with CL22 latency at 1.2 V, providing the rated speed when the platform supports that frequency.

Is the DDR4 3200 interface limited by the UDIMM form factor?

The 288-pin UDIMM is unbuffered ECC, so the memory controller drives it directly without a register, capping maximum capacity per channel to the module density.

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