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
An 8 GB DDR3L 1333 ECC registered DIMM running at 1.35 V with Samsung chips for server upgrades
This A-Tech module is an 8GB DDR3L 1333MHz registered DIMM built with Samsung components. It runs at 1.35V with CL9 latency and a 2Rx8 organisation. The 240-pin form factor fits server and workstation platforms that require ECC registered memory. It replaces Samsung part numbers M393B1G73BH0-YH9 and M393B1G73QH0-YH9.
Administrators upgrading or repairing servers that specifically call for DDR3L 1333MHz ECC RDIMM modules at 1.35V will find this part a direct match. Builders whose platforms need unbuffered memory, a different voltage, a higher speed grade or a larger single-module capacity should look at other options.
The module presents a registered ECC interface with a 2Rx8 rank configuration, which the memory controller must support. Verify that your system's qualified-vendor list includes this exact organisation and voltage before ordering.
| Brand | A-Tech |
|---|---|
| Series | Compatible Replacement for Samsung |
| Model | M393B1G73BH0-YH9, M393B1G73QH0-YH9 |
| Capacity | 8GB |
| Speed | DDR3L 1333 (PC3L 10600) |
| CAS Latency | CL9 |
| Voltage | 1.35V |
| ECC | Yes |
| Buffered/Registered | Registered |
| Rank | 2Rx8 |
| Chipset | Samsung Chipset |
| Features | M393B1G73BH0-YH9, M393B1G73QH0-YH9 |
The 1.35 V DDR3L voltage lowers power draw and heat output compared with standard 1.5 V DDR3, helping the system stay cooler during all-day workloads.
Your board needs a DDR3 DIMM socket that accepts 240-pin registered ECC modules and supports 1.35 V low-voltage operation.
Mixing 2Rx8 registered modules with different-rank ECC DIMMs is possible only if the platform's memory controller explicitly allows mixed-rank populations; check the system manual before installing.
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