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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NEMIX RAM
12-module 384GB DDR5 ECC RDIMM kit at 4800MHz CL40 for ASUS RS720-E11-RS24U servers
This 384GB kit contains twelve 32GB DDR5 4800 registered DIMMs built for the ASUS RS720-E11-RS24U 2U dual-socket server. ECC and registered buffering protect data integrity under continuous workloads. The modules run at 1.1V with CL40 latency and use major OEM DRAM from Samsung, Micron or Hynix.
IT teams upgrading the named ASUS server to its maximum supported capacity will find a matched, stress-tested set that installs in minutes. Buyers who need a different capacity, a different form factor or compatibility with another platform should look elsewhere.
The single figure that decides fitment is the twelve-module 32GB DDR5 4800 registered ECC configuration. Only systems that accept twelve 288-pin RDIMMs at this speed and voltage can use the kit. Verify the server memory list before purchase.
| Brand | NEMIX RAM |
|---|---|
| Series | ASUS Server Motherboard Compatible Series Memory |
| Model | ASUS DDR5 4800MHZ ECC RDIMM Registered Server Memory |
| Part Number | MR38400-314K12 |
| Capacity | 384GB (12 x 32GB) |
| Speed | DDR5 4800 (PC5 38400) |
| ECC | Yes |
| Buffered/Registered | Registered |
| Chipset | Major OEM Samsung, Micron, Hynix |
| Voltage | 1.10V |
| Compatible System | ASUS |
| CAS Latency | CL40 |
| Heat Spreader | No |
| Type | 288-Pin DDR5 RDIMM |
| Rank | 1Rx4 |
| Features | DDR5 ECC Registered RDIMM Server Motherboard Compatible |
| Package Content | 384GB (12X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT |
Power down the server and open the chassis. Populate all 12 DIMM slots following the motherboard's channel population guide — usually alternating CPU sockets. The step most often missed is locking both ejector clips on every module until they click, ensuring full contact.
The modules have no heat spreaders and no moving parts, so routine maintenance is limited to keeping server airflow paths clean. If a module fails, the ECC function will log correctable errors; replace the faulty 32GB RDIMM individually — no kit-level swap is required.
The primary limit is the JEDEC-standard 1.10 V operating voltage combined with CL40 latency; sustained heavy workloads will hit the bandwidth ceiling of PC5-38400 before thermal throttling becomes an issue, since the RDIMMs run without heat spreaders in a forced-air server chassis.
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