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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Brute Networks
16 GB DDR4-2666 CL15 1.2 V non-ECC UDIMM, HP-compatible for server upgrades
This 16GB DDR4-2666 CL15 UDIMM delivers 16GB of non-ECC memory at 1.20V for HP-compatible systems. It uses major-brand DRAM chips and meets OEM specifications for reliable operation. The unregistered design suits desktop and entry-level server boards that accept standard UDIMMs. It targets users who need a straightforward capacity increase without ECC overhead.
Replacing 8GB or smaller DDR4 modules with this 16GB stick doubles per-slot density while keeping the same 2666 MT/s speed and CL15 timing. The jump is worth it when your workload hits the physical slot limit or when dual-rank 2Rx8 organisation improves memory-controller efficiency. Systems already running at the maximum supported speed will not gain frequency, but they gain headroom for simultaneous applications.
The 1.20V operating voltage and standard JEDEC timings keep power draw predictable during long rendering, compilation or virtualisation sessions. Major-brand ICs from Samsung, SK Hynix or Micron maintain stable signalling without the voltage bumps required by overclocked kits. Thermal output remains consistent because the module runs at stock frequency and latency rather than an aggressive profile.
| Brand | HP |
|---|---|
| Capacity | 16GB |
| Speed | DDR4 2666 (PC4 21300) |
| CAS Latency | CL15 |
| Voltage | 1.20V |
| ECC | No |
| Buffered/Registered | Unregistered |
| Chipset | Major Brand Chipset |
Yes, it is a 288-pin unregistered UDIMM built to the DDR4-2666 PC4-21300 standard, so it installs in any desktop motherboard slot that accepts DDR4 UDIMMs.
Align the notch with the slot key, press straight down until both retention clips click, then verify in BIOS that the memory runs at 2666 MT/s with CAS latency 15 at 1.2 V.
The major-brand DRAM chips are rated for the lifetime of the system; no scheduled replacement is required unless a module fails, in which case the lifetime warranty covers a swap.
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