SK hynix HMA42GR7AFR4N-TF 16GB DDR4 2133MHz CL15 ECC Registered Dual Rank 1.2V 288-Pin Server RAM
- 16GB
- 288-Pin DDR4 SDRAM
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A-Tech
16 GB DDR4 2666 MHz ECC registered server memory module with 2Rx8 rank and 1.2 V operation
This 16GB DDR4 2666MHz ECC registered DIMM uses a 2Rx8 organisation and runs at 1.20V with CL19 latency. It is built with major-brand chips and serves as a direct replacement for Micron MTA18ASF2G72PDZ-2G6 and related part numbers. The 288-pin module targets server and workstation platforms that require registered ECC memory.
The module fits systems that accept DDR4 2666MHz registered ECC RDIMMs in a 2Rx8 configuration. Builders using consumer desktop boards, unbuffered DIMM slots, or non-ECC memory controllers should look elsewhere because the registered buffer and ECC function will not be supported.
A single 16GB stick provides a practical building block for populating multiple channels in dual-socket servers. Capacity scales with the number of populated slots, while headroom ends when all supported DIMM sockets are filled or the platform's maximum memory limit is reached.
| Brand | A-Tech |
|---|---|
| Capacity | 16GB |
| Speed | DDR4 2666 (PC4 21300) |
| CAS Latency | CL19 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 2Rx8 |
| Chipset | Major Brand Chipset |
| Features | Major Brand Chips |
It fits a standard 288-pin DDR4 DIMM slot that supports registered ECC memory at 1.2 V.
Yes, the system will run all modules at the lowest common speed and latency.
Check the BIOS memory info or run a tool such as dmidecode to verify speed, rank and ECC status.
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