This article covers Crucial ノートPC用増設メモリ 8GB(4GBx2枚) DDR4 2400MT.

Overview

The Crucial CT2K4G4SFS824A is a 8GB (2x4GB) DDR4-2400 SO-DIMM memory kit designed for laptops and compact desktops. It offers a straightforward upgrade path for machines that still rely on 4GB or share bandwidth between many tasks. With a CL17 latency and 260-pin SO-DIMM form factor, it fits into a wide range of older and mid-range notebook platforms.
This kit comes as two 4GB modules, allowing dual-channel operation when both slots are populated. That's a measurable benefit for integrated graphics and memory-sensitive workloads. While 2400 MT/s is not the fastest DDR4 speed available, it remains a highly compatible choice for many business and education laptops.
In terms of market positioning, this is an entry-level memory upgrade that prioritizes stability and ease of use over raw performance. It's a sensible pick for users who want to breathe new life into an aging laptop without spending a fortune.

Compatibility Guide

This memory uses the DDR4 SO-DIMM standard with a 260-pin connector. It is not compatible with desktop DIMM slots. Before purchasing, confirm that your notebook or mini PC has at least one free SO-DIMM slot and supports DDR4 modules. Many laptops from the Intel 6th/7th generation era and AMD Ryzen 2000 series or later accept 2400 MT/s or higher.
Dual-channel operation requires installing both modules in matched slots. Some ultrabooks may have only one SODIMM slot; the kit can still be used, but you'll lose the dual-channel benefit. Check your machine's max supported memory capacity, as some low-end models are capped at 8GB.
When installing, power off the laptop, remove the battery if possible, and ground yourself to avoid static damage. The modules click into place at a 30-degree angle, then lie flat and secure.

Product Info

The CT2K4G4SFS824A is sold by Crucial under its standard memory lineup. It carries 8GB total capacity in a 2x4GB configuration, rated at 2400 MT/s with CL17 timing. This product is widely available through online retailers and major electronics stores. The release date is not officially listed, but it has been a staple in the DDR4 SO-DIMM market for years.
Market positioning: entry-level to mid-range. It's not a gaming or creator-focused kit, but rather a reliable, cost-effective upgrade for everyday laptops. Crucial offers a limited lifetime warranty on most memory products; check the official page for exact details of your region.

Best Use Cases

  1. Office and web productivity: Users with a 4GB laptop that lags with multiple tabs and Office apps. The jump to 8GB via dual-channel will noticeably improve responsiveness.
  2. Budget laptop refresh: If you own a used or older Core i5/i7 or Ryzen laptop with DDR4, this kit is a low-cost way to extend its usable life for another couple of years.
  3. Sub-system for homelabs or media PCs: A mini PC with SO-DIMM slots can benefit from this kit for light workloads like NAS, firewalls, or retro gaming.
    This product is not for heavy creators, video editors, or gamers who need more than 8GB. Those users should look for 16GB or 32GB DDR4-3200 kits if the platform supports them.

Things to Consider

The biggest limitation is the 8GB capacity itself. Many modern workloads—browser tabs alone can eat several gigabytes—make 8GB feel cramped. If you often multitask with heavy apps, consider a larger kit. Also, 2400 MT/s is slower than today's DDR4-3200 standard. On laptops with limited lanes, the difference may be small, but it can impact integrated graphics performance.
Compatibility is usually solid, but always check your laptop's documented memory speed and maximum capacity. Some OEM BIOSes may downclock the memory to a lower speed, which is fine but reduces theoretical bandwidth. Also, beware of models with soldered RAM and no SODIMM slots—this kit simply won't fit.
Competing kits at DDR4-3200 are often priced similar to this one. If your laptop officially supports 3200, that's a better investment. However, for older platforms that only list 2133/2400 support, this kit ensures plug-and-play stability.

FAQ

Q: Which laptops can use this memory?
A: Any notebook or mini PC with a DDR4 SO-DIMM 260-pin slot. Check your device's spec sheet for memory speed and max capacity to be sure.
Q: Can I use just one module?
A: Yes, single-module operation works, but you lose dual-channel performance. For best results, install both 4GB modules.
Q: Is 8GB enough for daily use?
A: For basic office tasks, web browsing, and light media consumption, yes. For gaming, video editing, or running virtual machines, consider upgrading to 16GB or more.

Product Disclosure (Amazon)

  • Manufacturer: SAFAVIEH
  • Seller: HoNeY
  • Fulfilled by: Amazon
  • ASIN: B019FRD3SE
  • Note: This article covers a manufacturer-made product based on Amazon listing details.