32 GB DDR5-6400 RDIMM 1RX4 1.1V
Prices are quoted on request or revealed instantly to connected Web3 wallets. Choose your path:
Add to your RFQ, submit contact info, get a formal quote via email within hours.
Connect MetaMask or Coinbase Wallet to see live USD price and pay with USDC/ETH on Base or Ethereum.
The SK hynix HMCG84CHBRA282N AA is an enterprise-grade 32 GB DDR5-6400 (PC5-51200) single-rank registered DIMM (1Rx4) engineered for high-bandwidth modern server infrastructures. Operating at a standard 1.1V JEDEC supply, this RDIMM delivers exceptional data throughput and reduced signal loading for next-generation enterprise workloads.
The HMCG84CHBRA282N AA is built upon SK hynix's 16Gb C-die DDR5 DRAM technology, structured in a 1Rx4 (single-rank, x4 component) configuration. The module utilizes twenty x4 DRAM packages distributed across two independent 40-bit subchannels (32-bit data plus 8-bit subchannel ECC each), doubling channel concurrency compared to legacy DDR4 architectures. Decoding the part number reflects: 'HMCG' designates SK hynix DDR5 Registered DIMM, '8' denotes 32 GB total capacity, '4' represents the x4 component width, 'C' identifies the 16Gb C-die generation, 'R' indicates an RDIMM form factor, and 'A282N' denotes the DDR5-6400 speed binning and bill of materials.
Signaling and reliability are governed by an onboard JEDEC-compliant Registering Clock Driver (RCD), which re-drives command and address signals to minimize host memory controller loading. Power regulation is decoupled from the motherboard via an integrated on-module Power Management IC (PMIC), providing precise 1.1V VDD/VDDQ power rails with lower distribution losses. Combined with an integrated SPD Hub featuring thermal telemetry, system reliability is reinforced through two tiers of fault tolerance: silicon-level On-Die ECC (ODECC) for internal bit flips and sideband ECC for end-to-end bus error correction.
Always verify against your server's qualified vendor list (QVL).
Yes, DDR5 RDIMMs are backward compatible with lower JEDEC speeds. If host processors (such as 4th or 5th Gen Intel Xeon Scalable or AMD EPYC 9004) support up to 4800 MT/s or 5600 MT/s, the module will automatically clock down to the platform's maximum supported frequency.
A 1Rx4 configuration imposes lower electrical loading per channel than dual-rank alternatives, often enabling higher memory bus frequencies in multi-DIMM-per-channel (DPC) configurations. Additionally, x4-based enterprise RDIMMs support advanced multi-bit Chipkill error recovery that x8 configurations cannot match.
No. DDR5 RDIMMs feature an incompatible key notch position, distinct electrical pin assignments, and on-module PMIC architecture, making them mechanically and electrically incompatible with DDR4 slots.
The HMCG84CHBRA282N AA is a TAA-compliant enterprise server memory module (32 GB DDR5-6400 RDIMM 1RX4 1.1V). Sold as factory-sealed OEM stock with a 1-year warranty and same-day US shipping when in stock. We stock 94 units of this SKU today.
Compatible with enterprise servers requiring this exact configuration. Bulk orders welcome — quotes typically returned within one business hour. Payment terms: NET-30 for approved accounts, or instant on-chain payment via USDC/ETH on Base or Ethereum for autonomous AI agents and Web3 buyers.
Similar server memory modules in our live inventory
Parts you looked at earlier in this session