32GB DDR5-5600 UDIMM 2RX8 1.1V
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The Crucial CT32G56C46U5.C16D is a 32GB DDR5-5600 unbuffered DIMM (UDIMM) engineered for high-performance desktop PCs, mainstream workstations, and edge compute platforms. Operating at 1.1V with a CAS latency of CL46, this dual-rank (2Rx8) module delivers high-bandwidth throughput with improved energy efficiency for memory-intensive multi-threaded workloads. Built with Micron DRAM architecture, it provides robust reliability and plug-and-play DDR5 performance.
The CT32G56C46U5.C16D is built on standard JEDEC DDR5 unbuffered DIMM architecture using Micron 16Gb (gigabit) DRAM components organized in a dual-rank x8 (2Rx8) configuration. Across two physical ranks, it utilizes sixteen x8-wide DRAM packages to achieve a total capacity of 32GB over two independent 32-bit subchannels (plus on-die ECC overhead). Unlike registered server RDIMMs, this module lacks a Registering Clock Driver (RCD) or data buffers, routing signals directly to the host memory controller for minimal latency. In accordance with JEDEC DDR5 specifications, the module integrates an onboard Power Management IC (PMIC) to regulate the 1.1V VDD, VDDQ, and VPP rails directly on the PCB, reducing motherboard power-delivery complexity and improving signal stability. It also incorporates an integrated SPD Hub with thermal sensing. While DDR5 memory includes internal on-die ECC to mitigate single-bit cell-level errors within the DRAM array, this consumer/commercial UDIMM does not feature sideband bus ECC (non-ECC 64-bit data bus), meaning it does not correct data-in-transit bus errors. Decoding the part number: 'CT' designates Crucial Technology, '32G' represents 32GB capacity, '56' denotes 5600 MT/s data rate, 'C46' indicates CAS latency 46, 'U' specifies standard UDIMM, '5' indicates DDR5 generation, and '.C16D' represents the Micron 16Gb die revision and dual-rank package designators.
Always verify against your server's qualified vendor list (QVL).
No. Enterprise rackmount servers (such as Dell PowerEdge or HPE ProLiant running Intel Xeon or AMD EPYC processors) require Registered ECC DIMMs (RDIMMs). This unbuffered non-ECC UDIMM is intended for desktop motherboards and entry-level workstations.
It features on-die ECC, which is an internal feature of all DDR5 DRAM chips designed to correct bit errors within the silicon array. However, it does not support sideband bus ECC (it lacks the extra ECC ICs on a 72-bit/80-bit bus), so it is classified as a non-ECC UDIMM.
Yes, the module's JEDEC SPD profiles allow it to seamlessly downclock to DDR5-5200 or DDR5-4800 depending on CPU memory controller limitations and motherboard chipset capabilities.
The CT32G56C46U5.C16D is a enterprise server memory module (32GB DDR5-5600 UDIMM 2RX8 1.1V). Sold as certified refurbished with a 1-year warranty and same-day US shipping when in stock. We stock 17 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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