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Green printed circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech Supermicro Certified 16GB DDR4 2666MHz ECC RDIMM 2Rx8 CL19 1.2V 288-Pin Server Memory

SKU CH-JTZW-PBG2B

16 GB DDR4 ECC registered server memory running at 2666 MHz with CL19 latency and 1.2 V operation

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Supermicro certified for guaranteed server compatibility
  • 16GB capacity expands multitasking headroom
  • DDR4 2666MHz speed accelerates data throughput
  • ECC registered design protects data integrity
  • 2V operation reduces power consumption

Supermicro Certified 16GB DDR4 Server Memory

This A-Tech module delivers 16GB of DDR4 2666MHz ECC registered memory in a single 288-pin RDIMM. It is built for servers and workstations that require error correction and registered buffering for data integrity. The dual-rank 2Rx8 organisation with CL19 latency operates at the standard 1.2V DDR4 voltage. Supermicro certification confirms compatibility with qualified platforms.

DDR4 2666 Registered ECC Limits

Registered DIMMs add a clock cycle of buffering, so they cannot be mixed with unbuffered modules on the same channel. ECC functionality only activates when the platform chipset and BIOS support it; otherwise the module runs as non-ECC. The PC4-21300 rating defines the maximum standard bandwidth; faster speeds require platform overclocking support which most servers disable. Population rules may restrict rank count per channel.

Verify Platform Before Ordering

Confirm that your motherboard or server accepts DDR4 RDIMMs and supports 2Rx8 registered modules at 2666MHz. Check the vendor memory qualification list for the exact Supermicro part number MEM-DR416L-HL03-ER26 or the Hynix HMA82GR7AFR8N-VK equivalent. Ensure the CPU and chipset provide ECC capability if error correction is required. Validate maximum capacity per slot and total channel population limits.

How it compares

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

Price $138.99
Cheaper than about 58% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $8.69 per GB
Pricier than about 61% 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 nameSuperMicro
Product lineSupermicro Certified
Model nameMEM-DR416L-HL03-ER26
Total capacity16 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Should I choose the 16GB single module or add multiple sticks to reach my server's capacity?

This listing is a single 16GB DDR4 2666MHz RDIMM. Add identical modules to fill your board's slots and reach the total memory your workload requires.

What does the 2666MHz rating deliver inside a live server?

The module runs at DDR4 2666 (PC4-21300) with CL19 latency, giving registered ECC bandwidth suited for multi-threaded server workloads at standard 1.2V.

How does the 288-pin RDIMM interface affect what the system can use?

The 288-pin RDIMM form factor with registered ECC 2Rx8 organisation fits DDR4 server boards that support registered memory; it will not work in unbuffered desktop slots.

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