32GB DDR5-6400 RDIMM 1RX4 1.1V
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The Micron MTC20F1045S1RC64BH1 is a high-performance 32GB DDR5-6400 (PC5-51200) single-rank registered DIMM (RDIMM) engineered for enterprise server deployments. Operating at an energy-efficient 1.1V, this 1Rx4 module provides exceptional memory bandwidth and signal integrity for demanding data center, cloud computing, and AI inference workloads. Built with Micron's advanced DRAM architecture, it includes on-module power management and robust error correction for maximum platform reliability.
The MTC20F1045S1RC64BH1 is architected using Micron's DDR5 SDRAM technology organized in a single-rank 1Rx4 topology. The module integrates 20 discrete 16Gb DRAM packages (16 data chips plus 4 parity chips across two independent 32-bit subchannels, each augmented with 8 bits of ECC). In addition to standard on-die ECC (ODECC) that corrects internal cell bit flips, the module supports sideband bus-level ECC handled by the system memory controller. An onboard Register Clock Driver (RCD) buffers command, address, and control signals to reduce electrical loading on the host memory bus.
DDR5 departs from legacy DDR4 power architecture by moving voltage regulation from the motherboard directly onto the module via an onboard Power Management IC (PMIC), which distributes 1.1V VDD, VDDQ, and 1.8V VPP with tighter voltage tolerances and higher power efficiency. An integrated SPD Hub with an embedded thermal sensor reports continuous telemetry to the host management engine. Decoding the Micron part number reveals: 'MTC' designates Micron Technology Component/Module, '20' denotes a 20-chip RDIMM configuration, 'S1' indicates a single-rank layout, 'RC' identifies an RDIMM with standard RCD buffering, '64B' defines the DDR5-6400 speed grade (JEDEC standard CL52), and 'H1' indicates the component silicon generation and die revision.
Always verify against your server's qualified vendor list (QVL).
Yes. The module's SPD contains standard JEDEC fallback profiles that allow it to safely clock down to DDR5-5600 or DDR5-4800, depending on the maximum speed supported by your server's processor and channel population (e.g., 1 DPC vs 2 DPC).
A 1Rx4 (single-rank, x4) layout presents only one electrical rank load per DIMM to the memory channel, allowing the host memory controller to reach higher operating frequencies like 6400 MT/s with superior signal integrity. Additionally, x4-based DRAM allows advanced Chipkill/Device-Level error correction that cannot be achieved with x8 devices.
No. Unlike DDR4 modules that relied on motherboard voltage regulation, DDR5 RDIMMs feature an onboard Power Management IC (PMIC) that receives a 12V bulk supply from the motherboard and steps it down directly on the module to 1.1V VDD/VDDQ and 1.8V VPP.
The MTC20F1045S1RC64BH1 2XCC is a enterprise server memory module (32GB 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 40 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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