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
8GB DDR4 2133MHz ECC registered RDIMM, single-rank 1Rx4 at CL15 and 1.2V, Supermicro certified with Hynix chips
The A-Tech 8GB DDR4 2133MHz ECC RDIMM is a Supermicro certified server memory module built with Hynix chips. It targets administrators upgrading or repairing compatible Supermicro platforms that require registered ECC memory for data integrity.
This module replaces a failed stick or adds capacity to systems already running DDR4 2133 registered DIMMs. The jump is worth it when the platform demands CL15 timing at 1.2V and the motherboard qualified vendor list includes the MEM-DR480L-HL01-ER21 part number.
Installation follows standard 288-pin RDIMM procedure: align the key notch, press firmly until the retention clips lock, and verify seating. What usually goes wrong is mixing registered and unbuffered DIMMs or populating slots in an order the firmware does not support.
| Brand | SuperMicro |
|---|---|
| Series | Supermicro Certified |
| Model | MEM-DR480L-HL01-ER21 |
| Capacity | 8GB |
| Speed | DDR4 2133 (PC4 17000) |
| CAS Latency | CL15 |
| Voltage | 1.20V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 1Rx4 |
| Chipset | Major Brand Chipset |
| Features | Supermicro Certified MEM-DR480L-HL01-ER21 (HMA41GR7MFR4N-TF) |
Yes, the module uses the standard 288-pin DDR4 RDIMM form factor designed for compatible server motherboards.
Check your motherboard manual for the correct population sequence; registered DIMMs often require specific slots to be filled first.
Replace it if memory diagnostics report uncorrectable ECC errors or if your workload requires more than 8GB of capacity.
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