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Hynix HMA81GR7CJR8N-VKT3AD 8GB DDR4-2666MHz RDIMM 1Rx8 CL19 Memory
- Capacity: 8GB
- Memory Type: DDR4 SDRAM
- Form Factor: RDIMM (Registered DIMM)
- Speed: 2666MHz (PC4-21300)
- CAS Latency: CL19
- Rank: 1Rx8 (Single Rank x8)
- Voltage: 1.2V
- ECC: Yes (Error-Correcting Code)
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Product Overview
This Hynix HMA81GR7CJR8N-VKT3AD module is an 8GB DDR4 Registered DIMM (RDIMM) memory stick. It operates at a speed of 2666MHz with a CAS Latency of 19, making it suitable for servers and workstations that require reliable and efficient memory performance. The 1Rx8 configuration indicates a single rank of memory chips with 8 bits per chip.
Technical Information
| Manufacturer | Hynix |
| Part Number | HMA81GR7CJR8N-VKT3AD |
| Memory Size | 8GB |
| Memory Technology | DDR4 SDRAM |
| Memory Speed | 2666MHz |
Additional Specifications
| Module Type | RDIMM |
| Rank | 1Rx8 |
| CAS Latency | CL19 |
| Voltage | 1.2V |
Product Description
The Hynix HMA81GR7CJR8N-VKT3AD is a high-performance 8GB DDR4 Registered DIMM (RDIMM) memory module designed for server and workstation environments. Operating at a frequency of 2666MHz, it provides a substantial bandwidth increase over previous DDR generations, ensuring efficient data transfer for demanding applications. The RDIMM form factor includes an onboard register that buffers command and address signals, reducing electrical load on the memory controller and allowing for higher memory capacities and improved stability in multi-module configurations. This memory module features a 1Rx8 organization, meaning it consists of a single rank of memory chips, with each chip having an 8-bit data width. This configuration is common for many server applications. The CAS Latency (CL) of 19 indicates the number of clock cycles it takes for the memory to respond to a column address command. Coupled with its 2666MHz speed, this CL19 rating offers a balanced performance profile suitable for a wide range of enterprise workloads, from virtualization to database management. Furthermore, as an RDIMM, this Hynix memory module typically supports Error-Correcting Code (ECC) functionality. ECC memory can detect and correct common types of internal data corruption, significantly enhancing data integrity and system reliability, which is critical for mission-critical server operations. The module adheres to standard DDR4 specifications, ensuring compatibility with a broad spectrum of server platforms that support DDR4 RDIMMs.
