HMA82GR7JJR8N-VK Hynix 16GB DDR4 2666mhz SDRAM Reg 288Pin Memory

• Manufacturer: Hynix
• Part Number: HMA82GR7JJR8N-VK
• Memory Type: 16GB DDR4 SDRAM

Technical Specifications

• Capacity: 16GB
• Technology: DDR4 SDRAM
• Speed Rating: 2666MHz / PC4-21300
• Module Configuration: 1 × 16GB RDIMM
• Latency: CL19
• Data Integrity: ECC-enabled
• Rank Type: 2Rx8

Hynix HMA82GR7JJR8N-VK Server Memory

In the realm of enterprise computing and data center operations, memory performance isn't just a specification—it's the lifeblood of system responsiveness, application stability, and overall computational throughput. The Hynix HMA82GR7JJR8N-VK 16GB DDR4-2666MHz Registered Memory module stands as a testament to this principle, engineered specifically for servers and workstations where reliability, capacity, and error-free operation are non-negotiable. This module isn't merely a component; it's a critical infrastructure investment that directly impacts uptime, virtualization capabilities, and data processing efficiency.

Capacity: 16GB

The Hynix HMA82GR7JJR8N-VK DDR4 module features a capacity of 16GB, making it an ideal choice for users who require a high-performance and reliable memory solution. With this substantial capacity, users can enjoy enhanced multitasking capabilities, improved system responsiveness, and seamless execution of demanding applications.

DDR4 Server Memory Technology

Before delving into the specific attributes of the HMA82GR7JJR8N-VK, it's crucial to understand the technological landscape of DDR4 in server environments. DDR4 (Double Data Rate 4) represents a significant evolutionary leap from its DDR3 predecessor, offering higher module density, lower power consumption, and increased data transfer rates. For servers, these improvements translate directly into tangible benefits: the ability to host more virtual machines, handle larger in-memory databases, and reduce overall power and cooling costs in the data center.

Memory Module Form Factor: 288-Pin DIMM

The HMA82GR7JJR8N-VK utilizes the standard 288-pin Dual In-Line Memory Module (DIMM) form factor specifically designed for DDR4 memory. This physical interface features a single keying notch in a different position than DDR3 modules, preventing accidental insertion into incompatible motherboards. The 288 contacts provide the necessary signaling for the increased bandwidth and functionality of DDR4 technology, including separate command/address buses, data lines, and power delivery paths that collectively enable the module's high-performance characteristics.

Capacity: 16GB

The 16GB capacity of the HMA82GR7JJR8N-VK represents an optimal balance between density and affordability for many server deployments. Internally, this capacity is achieved using high-density DRAM chips arranged in a dual-rank configuration. A rank is an independent set of DRAM chips that share the same chip select signal, and dual-rank modules effectively provide two accessible memory arrays on a single physical DIMM. This architecture improves memory controller efficiency by allowing overlapping access to different ranks, thereby increasing overall bandwidth utilization.

2666MHz Speed

Operating at 2666 million transfers per second, the HMA82GR7JJR8N-VK delivers a peak theoretical bandwidth of 21.3 GB/s (hence the PC4-21300 designation, where 21300 represents MB/s). This speed represents a sweet spot in the DDR4 performance spectrum, offering substantial performance uplift over entry-level 2133MHz and 2400MHz modules without the significant price premium of 2933MHz or 3200MHz server memory. The module operates with industry-standard timings (CAS latency typically around 19 cycles) that balance responsiveness with stability at the rated frequency.

Thermal Management

The HMA82GR7JJR8N-VK operates at the standard DDR4 voltage of 1.2V, representing a 20% reduction from DDR3's 1.5V requirement. This power efficiency is critically important in data center environments where power consumption and heat generation directly impact operational costs. Each watt saved in memory power consumption also reduces cooling requirements, creating a compound effect on overall data center power usage effectiveness (PUE). The module includes thermal sensors that enable server management systems to monitor operating temperature and implement throttling if necessary to prevent overheating.

Firmware

The Hynix HMA82GR7JJR8N-VK includes a Serial Presence Detect (SPD) chip that contains essential timing and configuration information readable by the system BIOS/UEFI during boot. This allows the memory controller to automatically configure optimal settings for the installed modules. Additionally, the module supports various management features through the BIOS and integrated management controllers (such as IPMI), enabling remote health monitoring, predictive failure analysis, and efficient troubleshooting in managed data center environments.

Hynix HMA82GR7JJR8N-VK vs. DDR4 Modules

Compared to 2133MHz or 2400MHz DDR4 RDIMMs, the HMA82GR7JJR8N-VK's 2666MHz operating frequency provides approximately 10-25% higher memory bandwidth, depending on the specific workload and system configuration. This performance advantage is most noticeable in memory-intensive applications and multi-socket servers where memory bandwidth can become a system bottleneck. While lower-speed modules may have a slight acquisition cost advantage, the performance per dollar of 2666MHz modules like the HMA82GR7JJR8N-VK often proves superior for workloads that benefit from increased memory throughput.

Compatibility

The Hynix HMA82GR7JJR8N-VK is engineered for compatibility with server platforms that support DDR4-2666 RDIMMs with ECC functionality. This includes a wide range of Intel Xeon Scalable Processors (Skylake, Cascade Lake, and compatible generations) and AMD EPYC platforms that implement the DDR4 memory standard. Proper compatibility requires verification of both the CPU and chipset support, as memory capabilities are ultimately determined by the integrated memory controller within the processor.

Reliability

In enterprise environments, memory modules must deliver not only performance but also exceptional reliability and serviceability characteristics. The Hynix HMA82GR7JJR8N-VK incorporates several features designed specifically for 24/7 operation in business-critical systems where downtime is measured in lost revenue and productivity.