The SK hynix HMA42GR7AFR4N-TF is a 16GB DDR4-2133 ECC registered DIMM (RDIMM) stocked in wholesale quantities for resellers, system integrators, and IT procurement teams maintaining DDR4-generation server fleets. Because it is a registered ECC module, it is intended exclusively for platforms that explicitly support DDR4 RDIMMs—virtualization hosts, storage controllers, and 24/7 data center environments. It is not compatible with DDR5 modules, UDIMMs, or LRDIMMs, so we recommend confirming platform population rules before placing bulk orders; our sales team can assist with compatibility matching for specific server models.
We carry this part in volume with batch-consistent inventory, ensuring that modules shipped within a single order come from the same production lot wherever possible—critical for integrators deploying mixed-channel configurations. All units are inspected before dispatch and backed by our standard RMA program. Shipments are prepared in export-ready packaging and comply with CE, FCC, and RoHS requirements for overseas delivery.
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 for resellers and integrators
- Compatibility: As a 288-pin DDR4 RDIMM, this module fits only servers and workstations designed for registered DDR4 memory. It cannot be mixed with UDIMMs, LRDIMMs, or DDR5 modules within the same system.
- Deployment consistency: The dual-rank (2Rx4) organization balances density with rank interleaving for bandwidth-sensitive workloads. Modules will operate at the speed grade set by the CPU and chipset, so verify supported grades across your deployment fleet.
- Installation guidance: For production builds, populate memory channels evenly and keep module type, rank, and speed uniform within each system for stable JEDEC-standard operation. We provide part-matching support for repeat and large-volume orders.
- Stock assurance: Ongoing replenishment keeps this SKU available for both spot orders and scheduled delivery contracts; batch numbers can be confirmed prior to shipment on request.
For pricing on volume purchases, lead-time confirmation, or batch documentation, request a wholesale quote and our export sales team will respond promptly.
Wholesale & Procurement Notes
- MOQ negotiable depending on destination and order schedule.
- Tiered volume pricing available — request a quote with your target quantity.
- Typical lead time: 3–7 business days for in-stock quantities after payment confirmation.
- Packing & shipping: anti-static trays in export cartons; air or sea freight, DHL/FedEx/UPS supported.
- RMA window: 90 days from receipt for DOA and defective units, with replacement or credit issued after verification.
