HMCGY8MEBRB Hynix 1x48GB DDR5 UDIMM ECC RAM

Enterprise DDR5 ECC UDIMM Memory Expansion Module with the HMCGY8MEBRB for Server and Workstation Platforms

The HMCGY8MEBRB is an SK hynix DDR5 ECC UDIMM designed to expand memory capacity in modern server and workstation nodes that require unbuffered, non-registered DIMMs. As a 48GB single-module configuration, it supports high-density per-slot scaling while maintaining ECC data integrity for general compute, virtualisation, and engineering workloads that rely on consistent memory behaviour under sustained load.

Built for DDR5-4800 platforms, the HMCGY8MEBRB aligns with contemporary CPU memory controllers that balance bandwidth and power efficiency at 1.1V. The module’s dual-rank x8 organisation and 72-bit ECC data path improve resilience against soft errors, while the 288-pin DDR5 UDIMM form factor ensures compatibility with systems architected for ECC UDIMM rather than RDIMM/LRDIMM. In PCIe-centric servers where accelerator, NVMe, and network expansion compete for lanes and thermals, increasing DRAM headroom with the HMCGY8MEBRB helps reduce paging and storage I/O amplification, keeping latency predictable and throughput stable.

Why Choose the HMCGY8MEBRB?

The HMCGY8MEBRB delivers a pragmatic density-to-compatibility profile for enterprises standardising on ECC UDIMM platforms, enabling cost-effective scale-up within existing chassis and motherboard constraints. It supports reliable fleet deployment by keeping memory topology consistent across nodes, simplifying qualification, sparing, and lifecycle management without forcing a transition to registered memory designs.

SK hynix engineering emphasises process control, signal integrity validation, and sustained-duty reliability, aligning this module with data centre expectations for long-term stability, predictable interoperability, and controlled component revision practices.

Key Applications:

• Server and workstation memory expansion
• Virtualisation hosts on ECC UDIMM platforms
• General compute nodes and lab clusters
• Database and caching tiers requiring ECC

At Happyware - Server Hardware you benefit from non-binding offers tailored to your platform and rollout plan for the HMCGY8MEBRB, plus an extended warranty of up to 6 years to secure long-term fleet operation.