32GB DDR5-5600 ECC UDIMM 2RX8 1.1V
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The Samsung M324R4GA3DB0-CWMOD (HPE P64341-0A1) is a 32GB DDR5-5600 PC5-44800 dual-rank (2Rx8) ECC unbuffered DIMM (ECC UDIMM) operating at 1.1V. Engineered for entry-level enterprise servers, edge appliances, and precision workstations, this module combines high memory bandwidth with sideband error-correction code (ECC) reliability. It delivers high-density performance for single-socket platforms requiring workstation-grade data integrity and energy efficiency.
The M324R4GA3DB0-CWMOD leverages Samsung DDR5 DRAM technology built on 16Gb D-die monolithic silicon. Configured in a dual-rank x8 (2Rx8) topology, the module utilizes two independent 40-bit subchannels (32 data bits + 8 ECC bits each), enabling parallel access and reducing memory latency compared to legacy architectures. Because this is an unbuffered ECC DIMM (ECC UDIMM), it operates without a Registering Clock Driver (RCD) or data buffers, communicating directly with the CPU memory controller for reduced bus turnaround latency at the expense of maximum memory bus loading capacity.
In line with JEDEC DDR5 specifications, the module integrates an onboard Power Management IC (PMIC) to step down input voltage locally to 1.1V (VDD/VDDQ/VPP), providing tighter power regulation and lower rail noise. It also incorporates an integrated SPD Hub with thermal sensing for precise real-time telemetry. Decoding the part number: 'M324' denotes Samsung DDR5 ECC UDIMM, 'R4GA' designates rank/density/bit organization, '3' indicates dual-rank x8, 'D' reflects Samsung D-die, 'B0' identifies revision and package type, and 'CWM' targets DDR5-5600 speed bin with standard JEDEC CL46 timings. HPE part number P64341-0A1 designates official qualification for select HPE enterprise compute systems.
Always verify against your server's qualified vendor list (QVL).
No. ECC UDIMMs (Unbuffered DIMMs) and RDIMMs (Registered DIMMs) use different bus architectures and electrical signaling. Motherboards and memory controllers support either UDIMMs or RDIMMs, and the two types cannot be mixed.
All DDR5 DRAM chips feature On-Die ECC to correct bit flips within the internal silicon die. This module also features physical sideband ECC (an extra 8 bits per 32-bit subchannel), which protects data in transit across the memory bus from DRAM to CPU, providing complete enterprise-grade memory protection.
P64341-0A1 is the HPE factory or spare part number for this Samsung 32GB DDR5-5600 ECC UDIMM, indicating that the module is certified and firmware-validated for compatible HPE ProLiant Gen11 servers.
The M324R4GA3DB0-CWMOD - P64341-0A1 is a TAA-compliant enterprise server memory module (32GB DDR5-5600 ECC UDIMM 2RX8 1.1V). Sold as certified refurbished with a 1-year warranty and same-day US shipping when in stock. We stock 10 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.
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