This article covers 16GB DDR4 2400MTs PC419200 Mac.

Overview

The Crucial CT16G4S24AM is a 16GB DDR4-2400 (PC4-19200) SODIMM memory module designed specifically for Mac systems. It uses the standard 260-pin SODIMM form factor and is verified compatible with the iMac (Retina 5K, 27-inch, 2017) model. Operating at 2400 MT/s with CL17 latency and 1.2V, this dual-rank, unbuffered module offers a reliable upgrade path for users needing more memory without diving into complex configurations. The product sits in the entry-to-mid-range segment, targeting Mac owners looking for a cost-effective and thoroughly tested memory upgrade.

Compatibility Guide

This module uses the DDR4 SODIMM (260-pin) interface, making it physically compatible with any system that accepts standard DDR4 SODIMMs, including many laptops and some small-form-factor desktops. However, Crucial explicitly certifies compatibility with the iMac (Retina 5K, 27-inch, 2017) model. For Windows or other systems, we recommend using Crucial's online compatibility tool before purchase. The module is non-ECC, unbuffered, dual-rank, and uses x8-based DRAM components. It is not compatible with Apple Silicon Macs or systems requiring ECC memory.

Product Info

The Crucial CT16G4S24AM was introduced around 2017 and remains widely available through major retailers. It carries Crucial's standard product warranty (typically lifetime coverage for memory modules). Pricing on Japan is approximately ¥31,084 (tax included), offering solid value compared to other 16GB DDR4-2400 SODIMMs, especially given its verified Mac compatibility. Its market positioning is mid-range, providing a trustworthy solution for users who need to expand memory on compatible Mac systems without paying a premium for brand-name Mac-specific upgrades.

Best Use Cases

This memory is ideal for the following scenarios: Owners of the iMac (Retina 5K, 27-inch, 2017) seeking memory expansion: Officially verified compatibility ensures a hassle-free upgrade, noticeably improving performance in photo editing, video editing, and virtual machine workloads. Users of older Mac laptops or small-form-factor PCs: If your device supports DDR4 SODIMMs and you are experiencing sluggishness due to insufficient RAM, this module provides a cost-effective performance boost for everyday tasks. * Budget-conscious DIY builders with SODIMM-based motherboards: Mini-ITX or thin-ITX systems that accept SODIMMs can benefit from Crucial's reliability and competitive pricing, especially for office or home server builds.

Things to Consider

First and foremost, while this module follows standard DDR4 SODIMM specifications, Crucial markets it as Mac-specific, so you should verify compatibility with your specific model before purchase. It will not work with Apple Silicon Macs. If you plan to use two modules for dual-channel operation, try to obtain matched pairs from the same batch. The 2400 MT/s speed is adequate for most general tasks but may be considered slow by today's standards; power users who demand DDR4-3200 or higher should look elsewhere. Additionally, not all laptops have user-accessible memory slots, so check your device's serviceability before buying.

Product Disclosure (Amazon)

  • Manufacturer: Crucial(クルーシャル)
  • Seller: YSJPN
  • Fulfilled by: YSJPN
  • ASIN: B072K5HVRX
  • Note: This article covers a manufacturer-made product based on Amazon listing details.