SK hynix HMA42GR7AFR4N-TF 16G DDR4 2133 RDIMM
The SK hynix HMA42GR7AFR4N-TF is a 16GB DDR4-2133 ECC registered DIMM (RDIMM) built for enterprise servers, workstations, storage systems, and 24/7 data center operation. It suits buyers maintaining or expanding DDR4-generation platforms where registered ECC memory is required, such as virtualization hosts and storage/cache tiers. Note that as a DDR4 RDIMM it cannot be mixed with DDR5 modules or unbuffered desktop memory, so verify your platform’s supported memory type and population rules before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | SK hynix |
| Part Number | HMA42GR7AFR4N-TF |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) |
| Capacity | 16GB |
| Speed | DDR4-2133 / PC4-17000P (speed grade marking; modules of higher grades can typically run at 2133 MT/s) |
| Data Transfer Rate | 2133 MT/s |
| Rank Configuration | 2Rx4 (Dual Rank x4) |
| ECC Support | Yes |
| CAS Latency | CL15 |
| Operating Voltage | 1.2V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Organization | 2048M × 72 |
| Data Width | 72-bit (64-bit Data + 8-bit ECC) |
| Application | Enterprise Servers, Workstations, Storage Systems, Data Centers |
| Operating Environment | 24/7 Enterprise-Class Operation |
| Compliance | JEDEC Standard DDR4 RDIMM |
Good to know
- Compatibility: This is a 288-pin DDR4 RDIMM and will only work in servers/workstations that explicitly support DDR4 registered memory. It is not interchangeable with UDIMMs, LRDIMMs, or any DDR5 module, and mixing module types within a system is not supported.
- Family positioning: As a dual-rank (2Rx4) 16GB module, it offers a good balance of density and rank interleaving for bandwidth-sensitive workloads; check your platform’s supported speed grades, as the module will run at the speed set by the CPU and chipset (platform dependent).
- Buying tip: For production servers, plan channel population evenly across all memory channels and keep module type, rank, and speed consistent within a system to ensure stable JEDEC-standard operation—contact us if you need help matching this part to your exact server model.
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 HMA42GR7AFR4N-TF is a 16GB DDR4-2133 ECC registered DIMM (RDIMM) built for enterprise servers, workstations, storage systems, and 24/7 data center operation. It suits buyers maintaining or expanding DDR4-generation platforms where registered ECC memory is required, such as virtualization hosts and storage/cache tiers. Note that as a DDR4 RDIMM it cannot be mixed with DDR5 modules or unbuffered desktop memory, so verify your platform’s supported memory type and population rules before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | SK hynix |
| Part Number | HMA42GR7AFR4N-TF |
| Memory Type | DDR4 ECC Registered DIMM (RDIMM) |
| Capacity | 16GB |
| Speed | DDR4-2133 / PC4-17000P (speed grade marking; modules of higher grades can typically run at 2133 MT/s) |
| Data Transfer Rate | 2133 MT/s |
| Rank Configuration | 2Rx4 (Dual Rank x4) |
| ECC Support | Yes |
| CAS Latency | CL15 |
| Operating Voltage | 1.2V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Organization | 2048M × 72 |
| Data Width | 72-bit (64-bit Data + 8-bit ECC) |
| Application | Enterprise Servers, Workstations, Storage Systems, Data Centers |
| Operating Environment | 24/7 Enterprise-Class Operation |
| Compliance | JEDEC Standard DDR4 RDIMM |
Good to know
- Compatibility: This is a 288-pin DDR4 RDIMM and will only work in servers/workstations that explicitly support DDR4 registered memory. It is not interchangeable with UDIMMs, LRDIMMs, or any DDR5 module, and mixing module types within a system is not supported.
- Family positioning: As a dual-rank (2Rx4) 16GB module, it offers a good balance of density and rank interleaving for bandwidth-sensitive workloads; check your platform’s supported speed grades, as the module will run at the speed set by the CPU and chipset (platform dependent).
- Buying tip: For production servers, plan channel population evenly across all memory channels and keep module type, rank, and speed consistent within a system to ensure stable JEDEC-standard operation—contact us if you need help matching this part to your exact server model.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
