64GB DDR5-6400 RDIMM 2RX4 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 HMCG94CHBRA282N AA is an enterprise-grade 64GB DDR5-6400 (PC5-51200) dual-rank registered DIMM engineered for demanding data center and cloud computing workloads. Operating at a native 1.1V with advanced signal integrity and on-DIMM power regulation, it delivers exceptional memory throughput for compute-intensive virtualization, in-memory databases, and AI acceleration.
The HMCG94CHBRA282N module utilizes SK hynix C-die DRAM built on advanced monolithic 16Gb die density arranged in a 2Rx4 (dual rank, x4 bit width) topology. In DDR5 architecture, each module operates via two independent 32-bit subchannels (40 bits total per channel including 8 ECC bits), significantly improving concurrent memory access and channel efficiency compared to DDR4. Buffering and clock integrity are governed by an advanced JEDEC-compliant Registering Clock Driver (RCD), ensuring high-speed differential signal reliability to the host memory controller.
Power regulation has moved directly onto the module via an integrated Power Management IC (PMIC), which converts the 12V host supply down to 1.1V VDD, VDDQ, and 1.8V VPP with reduced power distribution losses and enhanced load-transient performance. Error handling includes both localized On-Die ECC (ODECC) for internal DRAM array integrity and external sideband ECC managed across the subchannels by the server platform. Decoding the part number: 'HMC' designates SK hynix DDR5, 'G9' denotes a 64GB RDIMM configuration, '4' specifies x4 DRAM organization, 'C' represents C-die revision, 'R' indicates RDIMM form factor, and '82' decodes to the DDR5-6400 speed bin.
Always verify against your server's qualified vendor list (QVL).
Yes, JEDEC-compliant DDR5 RDIMMs are backward compatible and will automatically downclock to the highest frequency supported by the host CPU and motherboard BIOS.
On-Die ECC corrects single-bit errors internally within each individual DRAM die to handle cell-level bit flips. In addition, the RDIMM features an extra 8 bits of sideband ECC per 32-bit subchannel to protect against transmission errors across the memory bus, providing comprehensive end-to-end data integrity.
While standard memory controllers allow mixing ranks across separate memory channels, mixing different DRAM organizations (x4 and x8) or varying speeds and capacities within the same channel is not recommended and often unsupported by enterprise server platform vendor guidelines.
The HMCG94CHBRA282N AA is a TAA-compliant enterprise server memory module (64GB DDR5-6400 RDIMM 2RX4 1.1V). Sold as NEW with a 1-year warranty and same-day US shipping when in stock. We stock 99 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