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
16GB DDR4-2133 registered ECC RDIMM with CL15 latency and 1.2V operation for HP servers
This module is a 16 GB DDR4-2133 registered RDIMM built to match HP part number 753221-B21. It runs at 1.20 V with CL15 latency and uses a 2Rx4 organisation on a 288-pin PCB. The stick carries ECC and is assembled with major-brand DRAM chips.
IT teams maintaining HP infrastructure can use this module to expand or replace memory without voiding the factory warranty. Systems that need unbuffered UDIMMs, a different speed grade, or non-ECC memory cannot use this part.
The registered buffer and 2Rx4 rank layout are required by the target HP platforms; a UDIMM or a different rank configuration will not post. Verify the server’s qualified vendor list for this exact specification before ordering.
| Brand | HP |
|---|---|
| Capacity | 16GB |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2133 (PC4 17000) |
| CAS Latency | CL15 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 2Rx4 |
| Chipset | Major Brand Chipset |
Power down the server, open the chassis, align the module notch with the slot key, press firmly until both retention clips click, then verify in BIOS that all 16 GB are recognised at 2133 MT/s.
No scheduled maintenance is required; the module carries a lifetime warranty, so a replacement would only be needed if a memory error appears during sustained operation.
The DDR4-2133 speed ceiling and CL15 latency set the bandwidth and response-time boundaries before thermal or voltage limits become a factor.
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