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 UDIMM module with black chips

A-Tech

A-Tech 8GB DDR4 2666 ECC UDIMM 2Rx8 Server Memory

SKU CH-KB9Y-XGA5Y

8GB DDR4 2666 ECC UDIMM module with CL19 latency, 1.2V operation, and 2Rx8 organisation for server and workstation upgrades

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMicron Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 8GB DDR4 2666MHz ECC UDIMM expands server capacity
  • CL19 latency and 1.20V voltage deliver stable performance
  • 2Rx8 dual-rank Micron chipset organisation improves throughput
  • 288-pin DDR4 DIMM form factor fits standard server slots
  • Lifetime warranty and US-based tech support back every module

8 GB DDR4 ECC UDIMM for servers

This 8 GB DDR4 2666 MHz ECC unbuffered DIMM targets server and workstation systems that require error-correcting memory. It replaces the Micron MTA18ASF1G72AZ-2G6B1 module and delivers PC4-21300 performance at CL19 latency. The single-rank 2Rx8 organisation suits platforms that accept unregistered ECC UDIMMs.

Check motherboard support for unbuffered ECC DDR4

Verify that your platform accepts 288-pin DDR4 UDIMMs with ECC enabled and can run at 2666 MHz 1.20 V. Confirm the maximum module capacity per slot and the total memory limit for your specific CPU and chipset. Ensure the BIOS is updated to recognise 8 GB density modules before installation.

288-pin gold contacts with standard height PCB

The module uses a standard-height green PCB with 288 gold-plated edge contacts that seat firmly in server DIMM slots. Unbuffered design means no register chip adds latency, so signal integrity relies on clean motherboard traces. Handle by the edges to avoid contaminating contacts during upgrades.

How it compares

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

Price $99.99
Cheaper than about 69% 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 $12.50 per GB
Pricier than about 72% 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
Product lineCompatible Replacement for Micron
Model nameMTA18ASF1G72AZ-2G6B1
Total capacity8 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMicron Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Does the 8 GB DDR4 2666 ECC UDIMM ship as a single 288-pin module or do I need to order anything else?

The package contains one 8 GB DDR4 2666 ECC unbuffered DIMM (288-pin, 2Rx8, CL19, 1.20 V). No extra cables, brackets or cooling parts are required.

Should I pick the 2666 MHz PC4-21300 version or a different speed grade for my server?

Choose the 2666 MHz PC4-21300 module when your platform specifies DDR4-2666 ECC UDIMM; it will run at the rated 2666 MT/s with CL19 latency at 1.20 V.

What does the 2666 MHz rating mean once the module is installed in a compatible system?

The memory operates at 2666 MT/s (PC4-21300 bandwidth) with ECC error correction, CL19 timing and standard 1.20 V DDR4 voltage.

More in ECC Server RAM

Similar items