Crucial 128GB (2 x 64GB) DDR5 6400 MHz CUDIMM Memory Kit

The Crucial CT2K64G64C52CU5 is a dual-module, 128GB DDR5 memory kit designed for desktop platforms that support the CUDIMM (Clocked Unbuffered DIMM) standard. Supplied as a matched pair of two 64GB modules, this kit is built to operate at 6400MHz, placing it at the upper end of the current mainstream DDR5 frequency range and making it well-suited for memory-intensive workloads such as content creation, large-scale data processing, professional applications, and heavily multitasked computing environments. The CUDIMM form factor differentiates this kit from standard UDIMM DDR5. CUDIMMs incorporate an module clock driver (CKD) that re-drives the clock signal, allowing the memory bus to run more reliably at higher frequencies without requiring the platform overhead of a fully registered (RDIMM) solution. This architecture is particularly relevant on Intel platforms that have expanded CUDIMM support in their consumer and prosumer desktop lineups. With a combined capacity of 128GB across two slots, this kit leaves room for potential future expansion on four-slot motherboards, while immediately delivering substantial headroom for virtual machines, RAW photo editing suites, 3D rendering pipelines, and professional-grade workloads that saturate conventional 32GB or 64GB configurations. The kit ships in a black module finish and carries Crucial's limited lifetime warranty, reflecting the manufacturer's confidence in component quality. Crucial, a brand of Micron Technology, manufactures DRAM using its own fabrication, which supports consistent module binning and compatibility. Verifiable specifications: • Part number: CT2K64G64C52CU5 • GTIN / EAN-UPC: 649528943552 • Configuration: 2 × 64GB (128GB total) • Memory type: DDR5 • Speed: 6400MHz • Form factor: CUDIMM • Color: Black • Warranty: Limited Lifetime Verify motherboard CUDIMM compatibility before purchase, as not all DDR5 platforms support the CKD-equipped form factor. Consult your motherboard manufacturer's qualified vendor list (QVL) to confirm support for 64GB single-module densities at 6400MHz