Crucial 128GB (2x64GB) DDR5-6400 CUDIMM CL52 Desktop Memory Black
Overview
One of the very first Crucial DDR5 CUDIMM kits to reach the market, supplied as an early-release unit direct from Micron and Crucial. CUDIMM (Clocked Unbuffered DIMM) is the next step for desktop memory: an on-board clock driver sits on each module and regenerates the command and address signals, holding them clean at speeds standard DIMMs cannot sustain.
That clock driver is what lets this 128GB kit run full JEDEC DDR5-6400 straight out of the box on Intel Core Ultra Series 2 desktops, with no manual tuning. CL52 timings and a 1.1V operating point keep it cool and stable, while on-die ECC quietly corrects bit errors at the DRAM level for added data integrity.
With 128GB across two 64GB modules, there is ample headroom for memory-hungry workloads: large creative projects, virtual machines, local AI models, heavy multitasking and high-resolution content creation. Built on Micron's own DRAM and backed by decades of memory engineering.
Exceptionally rare and, as far as we are aware, the only kit of its kind currently available globally. This is the single unit we hold in stock.
What's in the Box
Specification
Total Capacity
128GB (2x64GB)
Memory Speed
DDR5-6400 (6400MT/s)
CAS Latency
CL52
Form Factor
288-pin CUDIMM (Clocked Unbuffered DIMM)
Voltage
1.1V
Data Integrity
On-die ECC
Colour
Black
MPN
CT2K64G64C52CU5
EAN / UPC
0649528943552
UNSPSC
43201402
Barcode
Models
- Broadly compatible with DDR5 desktop platforms that accept 288-pin unbuffered DIMMs, such as Intel Core Ultra Series 2 systems, where the module's on-board clock driver delivers full JEDEC DDR5-6400 straight out of the box.