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
Adds 64 GB of DDR4-2666 ECC load-reduced memory to compatible HPE servers
This module delivers 64 GB of DDR4-2666 capacity in a 288-pin load-reduced form factor with ECC. It runs at 1.20 V and carries the PC4-21300 speed rating. The 4Rx4 organisation suits dense memory configurations in HPE servers. It is built for administrators who need large-capacity registered DIMMs that match OEM specifications.
The load-reduced architecture lowers electrical load on the memory bus, helping signal integrity when all slots are populated. ECC corrects single-bit errors during continuous operation. Major-brand DRAM from Samsung, SK Hynix or Micron provides consistent timing at 2666 MT/s under prolonged workloads. The 1.2 V operation keeps power draw stable across extended duty cycles.
Each DIMM is 100 % tested and validated for HPE part number 815101-H21, so it seats in standard 288-pin DDR4 slots without configuration changes. Orders ship with identically matched modules to avoid rank or timing mismatches. The product is not suited for systems that require unbuffered UDIMMs or non-ECC memory. Buyers needing smaller capacities or different rank counts should select an alternative module.
| Brand | HPE |
|---|---|
| Capacity | 64GB |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2666 (PC4 21300) |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Load Reduced |
| Rank | 4Rx4 |
| Chipset | Major Brand Chipset |
Each module operates at 1.20 volts; total power draw scales with the number of modules installed and the server workload.
The motherboard needs DDR4 RDIMM slots that accept 288-pin Load Reduced modules and support ECC.
It is validated as 100 percent HPE compatible and runs at DDR4-2666, so it can populate empty slots alongside existing HPE DDR4-2666 RDIMMs.
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