Crucial 128GB (2x64GB) DDR5-6400 CUDIMM Desktop Memory CT2K64G64C52CU5
The Crucial 128GB (2 x 64GB) DDR5-6400 CUDIMM kit (CT2K64G64C52CU5) is built for AI PCs with Intel Core Ultra (Series 2) processors. A clock driver on each module supports speed stability at JEDEC speeds up to 6,400MT/s, which Crucial says is up to twice as fast as DDR4, with a limited lifetime warranty.
Key features
- 128GB kit: two 64GB CUDIMM modules for heavy multitasking and AI workloads.
- DDR5-6400 JEDEC speed: PC5-51200 at CL52, with no overclocking needed.
- Clock driver on the module: the CUDIMM form factor supports speed stability, faster downloads and better refresh rates.
- Made for Intel Core Ultra (Series 2): Crucial's next-gen DDR5 support for AI PCs.
- Limited lifetime warranty: from Crucial.
Specifications
| Specification | Detail |
|---|---|
| Brand / part number | Crucial CT2K64G64C52CU5 |
| Capacity | 128GB kit (2 x 64GB) |
| Technology / module type | DDR5 CUDIMM |
| Speed | DDR5-6400 (PC5-51200) |
| CAS latency / timings | CL52; 52-52-52-103 (JEDEC) |
| Voltage | 1.1V (5V ext) |
| Die density | 16Gb |
| Warranty | Limited lifetime (Crucial) |
Compatibility
Crucial says its DDR5 CUDIMM memory is compatible with Intel Core Ultra processors (Series 2). In a 14th gen Intel CPU or lower it runs at up to 5,600MT/s or lower. On AMD systems the standard speed is 3,200MT/s, or up to 5,600MT/s with BIOS adjustments. Check your motherboard supports CUDIMM before ordering.
Who it's for
Suited to: creators, developers and power users building an Intel Core Ultra (Series 2) desktop that needs lots of fast memory. See our full Crucial range.
Not suited to: older Intel or AMD systems that can't use CUDIMM at full speed, or laptops. For a standard DDR5 desktop module, see the Crucial Pro 32GB DDR5-6000 UDIMM.
FAQs
What is CUDIMM memory?
CUDIMM is a DDR5 desktop form factor with a clock driver directly on the module to support speed stability at high speeds.
Which processors does it support?
Crucial lists compatibility with Intel Core Ultra processors (Series 2), where it runs at up to 6,400MT/s.
Will it work with AMD?
Crucial says AMD systems run it at 3,200MT/s as standard, or up to 5,600MT/s with BIOS adjustments.
What warranty does it have?
Crucial offers a limited lifetime warranty.
