This article covers Crucial デスクトップ用増設メモリ 16GB(8GBx2枚) DDR4 2400MT.

Overview

The Crucial CT2K8G4DFS824A is a dual-channel DDR4 memory kit consisting of two 8GB modules for a total of 16GB. It runs at 2400MT/s (PC4-19200) with CL17 timings and operates at 1.2V, making it a standard Unbuffered DIMM for desktop systems. This kit is a solid choice for entry-level to mid-range builds where budget matters more than peak memory bandwidth. It pairs well with Intel 6th-gen (Skylake) through 9th-gen Core processors, as well as early AMD Ryzen CPUs up to the Ryzen 3000 series. The JEDEC-standard 2400MHz speed ensures broad compatibility without requiring XMP enablement. In today's market, DDR4-2400 sits in the entry-level tier, but for everyday tasks like office work, web browsing, and media consumption, the difference from faster DDR4-3200 is negligible. This kit shines in stability-focused builds where cost is the primary constraint.

Compatibility Guide

Sockets/Platforms: Intel LGA1151, LGA1200, LGA2066 (Skylake-X), AMD AM4 (Ryzen 1000/2000/3000 series), and any DDR4-compatible motherboard with 288-pin DIMM slots. Memory Standard: DDR4-2400 (PC4-19200), CL17, 1.2V. No XMP required; runs at JEDEC default. Form Factor: 288-pin UDIMM. Not compatible with laptops (SODIMM) or server/workstation registered memory. Heads-up: Some older motherboards (e.g., Intel H110, B150) may default to 2133MHz. A BIOS update or manual memory timing adjustment in BIOS may be needed to reach 2400MHz.

Product Info

The CT2K8G4DFS824A has been on the market for several years and is now found in clearance or second-hand channels. Retail pricing hovers around $30-35 USD for the kit. Crucial backs this memory with a limited lifetime warranty, which adds peace of mind for long-term use. Market positioning is clearly entry-level. At 2400MHz CL17, this is not the fastest DDR4 around, but for typical productivity tasks, it is perfectly adequate. The low 1.2V voltage keeps thermals in check, enabling passive airflow in tight cases.

Best Use Cases

Budget Gaming Builds: If your GPU or CPU is the main performance limiter, paying extra for 3200MHz memory won't yield meaningful gains. This kit lets you allocate budget toward a better graphics card or CPU cooler. Office and Home PCs: Spreadsheets, document editing, video calls, and light photo editing – none of these saturate even 2400MHz bandwidth. Stability and low cost make it ideal for family or homework machines. * Secondary or Media Server Systems: File servers, Plex transcoding boxes, or Linux-based homelabs rarely benefit from fast RAM. This kit delivers reliable 24/7 operation without breaking the bank. ## Alternatives
Direct competitors in the same price bracket include Team Elite TED416G2400C119BK and Silicon Power SP016GXLZU240A01. All three kits share similar specs: DDR4-2400, CL17, 1.2V, and 16GB dual-channel. Where Crucial stands out is its use of Micron-manufactured DRAM chips. This often results in better compatibility across a wider range of motherboards and fewer random crashes. The lifetime warranty also beats some competitors' limited 3- or 5-year coverage. However, Team and Silicon Power kits may occasionally be $2-5 cheaper, making them worth a look if budget is razor-thin.

Things to Consider

First and foremost, understand that this is DDR4-2400 – the slowest mainstream DDR4 speed. With modern CPUs like Ryzen 5000 or Intel 12th-gen, your system will leave measurable performance on the table in CPU-bound tasks. In gaming, expect 5-15% lower FPS compared to DDR4-3200. Second, upgradability is limited. Because this is a 2x8GB kit, adding another 16GB later means finding the exact same revision of the CT2K8G4DFS824A. Crucial often changes chip composition without changing the model number, so mixing different production batches may cause instability. Lastly, if you purchase from a third-party reseller or second-hand market, inspect the modules for physical damage or odd markings. While memory rarely fails, it's sensible to verify that the kit runs at its rated speed without errors using a tool like MemTest86 before committing to everyday use.

Product Disclosure (Amazon)

  • Manufacturer: Crucial(クルーシャル)
  • Seller: スマイル生活館【すり替え詐欺・抜き取り対策店】
  • Fulfilled by: Amazon
  • ASIN: B01BIWLED0
  • Note: This article covers a manufacturer-made product based on Amazon listing details.