SK hynix HMT42GR7DFR4A-PB 16G DDR3 1600 RDIMM
The SK hynix HMT42GR7DFR4A-PB is a 16GB DDR3L registered DIMM (RDIMM) built for server and workstation platforms still running the DDR3 generation. It suits system integrators, refurbishers, and IT departments maintaining virtualization hosts, data center nodes, or enterprise storage arrays. As a DDR3 module, it is not interchangeable with DDR3 UDIMMs in all boards or with any DDR4/DDR5 system — always verify your platform’s memory qualified vendor list (QVL) before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | SK hynix |
| Part Number | HMT42GR7DFR4A-PB |
| Capacity | 16GB |
| Memory Type | DDR3 SDRAM (DDR3L) |
| Module Type | RDIMM (Registered DIMM) |
| Form Factor | 240-Pin DIMM |
| Data Rate | 1600 MT/s |
| Speed Grade | DDR3-1600 |
| Bandwidth | PC3-12800R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| ECC Support | Yes (requires server platform with ECC support) |
| CAS Latency | CL11 |
| Operating Voltage | 1.35V (Low Voltage DDR3L; platform dependent) |
| Signal Type | Registered |
| Application | Servers, Data Centers, Virtualization, Enterprise Storage |
Good to know
- Compatibility: This is a registered ECC module for server boards only — it will not work in typical desktop or consumer platforms, and DDR3 modules cannot be mixed with DDR4 or DDR5 regardless of form factor. Check your motherboard’s supported population rules for 1.35V DDR3L operation.
- Within SK hynix’s DDR3 server lineup, the PC3-12800R (DDR3-1600) speed grade sits at the top of the DDR3 range, and the 2Rx4 dual-rank configuration helps populate channels efficiently — many older server platforms achieve better bandwidth with dual-rank modules, though maximum population per channel can be platform-limited.
- Buying tip: When building out multi-channel servers, order modules of identical part number, capacity, and rank configuration per channel to avoid training instability, and confirm your host platform supports 1.35V low-voltage operation to benefit from the reduced power draw.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The SK hynix HMT42GR7DFR4A-PB is a 16GB DDR3L registered DIMM (RDIMM) built for server and workstation platforms still running the DDR3 generation. It suits system integrators, refurbishers, and IT departments maintaining virtualization hosts, data center nodes, or enterprise storage arrays. As a DDR3 module, it is not interchangeable with DDR3 UDIMMs in all boards or with any DDR4/DDR5 system — always verify your platform’s memory qualified vendor list (QVL) before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | SK hynix |
| Part Number | HMT42GR7DFR4A-PB |
| Capacity | 16GB |
| Memory Type | DDR3 SDRAM (DDR3L) |
| Module Type | RDIMM (Registered DIMM) |
| Form Factor | 240-Pin DIMM |
| Data Rate | 1600 MT/s |
| Speed Grade | DDR3-1600 |
| Bandwidth | PC3-12800R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| ECC Support | Yes (requires server platform with ECC support) |
| CAS Latency | CL11 |
| Operating Voltage | 1.35V (Low Voltage DDR3L; platform dependent) |
| Signal Type | Registered |
| Application | Servers, Data Centers, Virtualization, Enterprise Storage |
Good to know
- Compatibility: This is a registered ECC module for server boards only — it will not work in typical desktop or consumer platforms, and DDR3 modules cannot be mixed with DDR4 or DDR5 regardless of form factor. Check your motherboard’s supported population rules for 1.35V DDR3L operation.
- Within SK hynix’s DDR3 server lineup, the PC3-12800R (DDR3-1600) speed grade sits at the top of the DDR3 range, and the 2Rx4 dual-rank configuration helps populate channels efficiently — many older server platforms achieve better bandwidth with dual-rank modules, though maximum population per channel can be platform-limited.
- Buying tip: When building out multi-channel servers, order modules of identical part number, capacity, and rank configuration per channel to avoid training instability, and confirm your host platform supports 1.35V low-voltage operation to benefit from the reduced power draw.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
