This article covers Crucial(クルーシャル) PRO (マイクロン製) デスクトップ用メモリ 16GB×1枚 DDR5-6400 制限付無期限保証 オーバークロックブラック CP16G64C38U5B 【国内正規代理店品】.

Overview

The Crucial Pro CP16G64C38U5B is a DDR5 memory module built with Micron's own DRAM chips. This single 16GB module runs at 6400 MT/s with CAS latency of CL38, featuring a black heat spreader for thermal management. It targets mid-to-high-end desktop builds where memory bandwidth matters, such as gaming and content creation. Crucial's direct access to Micron fabrication ensures consistent quality and compatibility. The module is sold individually, allowing flexible capacity upgrades.

Compatibility Guide

The module uses the standard UDIMM 288-pin form factor, compatible with all DDR5-ready desktop motherboards. It works with Intel 600/700 series chipsets and AMD AM5 platforms. Voltage is 1.35V, typical for overclocked DDR5 memory. It supports Intel XMP 3.0 for one-click overclocking. Note that DDR5 is not backward compatible with DDR4 slots.

Product Info

Launched in late 2024, this module is priced around ¥62,000 (tax included) in Japan, competitive for a 16GB DDR5-6400 stick. Crucial offers a limited lifetime warranty. The product sits in the mid-high performance tier, ideal for gamers and professionals who need fast DDR5 without premium branding. Being a Micron product, the chips are guaranteed by the manufacturer.

Best Use Cases

Gamers building a high-FPS system: 6400 MT/s provides extra bandwidth for CPU-intensive titles, especially on Intel platforms where memory overclocking headroom is better. Creative professionals working with large files: 32GB (two modules) in dual-channel offers a great balance of speed and capacity for video editing or 3D rendering. * Users expanding an existing DDR5 system: buying a single module is straightforward if you have an empty slot and want to add capacity without replacing existing memory. ## Alternatives
Key competitors include G.Skill Trident Z5 Neo DDR5-6000 CL30 and Corsair Vengeance DDR5-6000 CL36. The Crucial Pro module offers a slightly higher frequency (6400 vs 6000 MT/s) at the cost of higher latency (CL38 vs CL30/36). For AMD systems, 6000 MT/s CL30 is often the sweet spot, making G.Skill a better match. For Intel systems, the higher bandwidth of 6400 MT/s can be leveraged, especially with Z790 or newer chipsets. Crucial's warranty and Micron heritage are solid advantages if you prioritize reliability over optimal timings.

Things to Consider

Since this is a single module, you need two for dual-channel operation. Mixing modules from different batches may cause instability. It's safer to buy a pair from the same source. 6400 MT/s is not guaranteed on all platforms. AMD AM5 is more stable at 6000 MT/s; Intel can usually handle 6400 MT/s but check your motherboard's QVL. * The heat spreader is relatively low profile, so it shouldn't interfere with large air coolers. But always measure clearance in your case.

Product Disclosure (Amazon)

  • Manufacturer: Crucial(クルーシャル)
  • ASIN: B0DMTN335Q
  • Note: This article covers a manufacturer-made product based on Amazon listing details.