32GB DDR5-4800 RDIMM 2RX8 1.1V
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The Samsung M321R4GA3BB6-CQKVS (Dell OEM part number SNPW08W9C/32G) is a 32GB DDR5-4800 Registered ECC DIMM engineered for enterprise server deployments. Designed with a dual-rank x8 (2Rx8) topology and operating at a low 1.1V, this module provides substantial memory bandwidth and power efficiency for enterprise virtualization, databases, and high-performance computing. It offers certified drop-in compatibility for Dell 16th Generation PowerEdge platforms and standard DDR5 enterprise server infrastructures.
The M321R4GA3BB6-CQKVS is built on Samsung 16Gb B-die DRAM monolithic silicon using an industry-standard 288-pin dual-rank x8 (2Rx8) RDIMM layout. Under the JEDEC DDR5 specification, the module splits memory addressing into two independent 32-bit subchannels (plus 8-bit ECC sideband overhead per subchannel), doubling the effective concurrency and burst length compared to DDR4. A central Registering Clock Driver (RCD) buffers command, address, and control signals to reduce electrical loading on the host memory controller. Power regulation is moved from the motherboard directly onto the module via an integrated 1.1V Power Management IC (PMIC), which, alongside an on-board SPD Hub with integrated thermal sensors, ensures optimal power delivery and fine-grained telemetry.
Samsung's part numbering breaks down systematically: 'M321' identifies a standard enterprise DDR5 Registered DIMM; 'R4GA' denotes a 32GB dual-rank module utilizing 16Gb-based monolithic dies; '3' specifies the standard PCB form factor; 'B' represents Samsung B-die DRAM; 'B' specifies the package version; '6' indicates a halogen-free design; and 'CQK' marks the JEDEC speed bin of DDR5-4800 with standard CL40 timings. Data integrity is guaranteed via dual-layer error management, combining DDR5 on-die ECC (ODECC) for internal DRAM error correction with sideband ECC handled by the RCD and system memory controller.
Always verify against your server's qualified vendor list (QVL).
Samsung M321R4GA3BB6-CQKVS is the original manufacturer part number, while SNPW08W9C/32G is Dell's certified spare/upgrade part number. Dell qualifies and labels this specific Samsung RDIMM for use across 16th Generation PowerEdge platforms.
DDR5 is physically and electrically incompatible with DDR4 slots. However, this DDR5-4800 RDIMM can downclock automatically to slower standard JEDEC DDR5 frequencies (such as DDR5-4400 or DDR5-4000) if mandated by the server processor or multi-DIMM-per-channel configurations.
Unlike DDR4, where motherboard voltage regulators managed 1.2V supply, DDR5 integrates a dedicated 1.1V Power Management IC directly on the DIMM. This improves power distribution efficiency, decreases voltage droop, reduces motherboard layout complexity, and enables precise per-module power telemetry.
The M321R4GA3BB6-CQKVS - SNPW08W9C/32G is a enterprise server memory module (32GB DDR5-4800 RDIMM 2RX8 1.1V). Sold as factory-sealed OEM stock with a 1-year warranty and same-day US shipping when in stock. We stock 100 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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