This article covers Samsung Memory M378A2K43BB1-CPB 16GB DDR4 2133MHz アンバッファードベア 電子コンシューマーエレクトロニクス.

Overview

The Samsung M378A2K43BB1-CPB is a 16GB DDR4 memory module manufactured by Samsung. It operates at 2133MHz (PC4-17000) with a CAS latency of CL9, running at a standard voltage of 1.2V. This unbuffered, non-ECC DIMM uses a 288-pin form factor designed for desktop PCs. This memory is well-suited for DDR4-compatible systems, particularly those built around 6th to 9th generation Intel Core processors or early AMD Ryzen generations. The 16GB capacity provides ample headroom for everyday office tasks, web browsing, and light creative work. Positioned in the entry to mid-range segment, this Samsung module emphasizes stability and reliability over raw speed. Its OEM pedigree and long availability make it a trusted choice for budget-conscious builders.

Compatibility Guide

The Samsung M378A2K43BB1-CPB uses the standard 288-pin UDIMM form factor, fitting into any DDR4 slot on ATX, MicroATX, or Mini-ITX motherboards. It is compatible only with DDR4 memory slots; DDR3 or DDR5 slots are not supported. Typical motherboard pairings include Intel H110, B250, Z370, Z390 chipsets, and AMD A320, B350, X370, B450 chipsets. Some older boards may require a BIOS update for proper recognition. Note that this is non-ECC memory, so it is not suitable for server or mission-critical environments requiring error correction. For dual-channel operation, using two identical modules from the same batch is recommended.

Product Info

The Samsung M378A2K43BB1-CPB is a 16GB DDR4-2133 (PC4-17000) memory module with CL9 latency and 1.2V operating voltage. It is unbuffered and non-ECC, targeting consumer desktop systems. In the market, it sits at the entry to mid-range tier. While its 2133MHz speed is modest compared to modern DDR5 or high-speed DDR4 kits, its strength lies in proven stability and broad compatibility. Samsung's memory is widely used by OEMs, adding to its reliability reputation. Warranty coverage varies by seller, but purchasing from authorized retailers like ensures standard manufacturer support.

Best Use Cases

This memory is ideal for the following scenarios: Everyday office work, web browsing, and media consumption. 16GB is sufficient for multitasking with multiple applications open simultaneously. Budget-conscious builds where cost savings are prioritized over peak memory bandwidth. The 2133MHz speed keeps prices low while delivering dependable performance. * Secondary PCs, file servers, or media center builds where low power consumption and minimal heat output are beneficial. Its 1.2V operation makes it suitable for compact or fanless cases.

Things to Consider

The Samsung M378A2K43BB1-CPB's 2133MHz speed is relatively slow by current standards. For gaming, video editing, or 3D rendering, faster DDR4-3200 or DDR5 memory will provide noticeable performance gains. This module is designed for desktop PCs only; it cannot be used in laptops. Also, it is non-ECC, so it is not appropriate for servers or error-sensitive workloads. Competitors include similar 16GB DDR4-2133 modules from Crucial, Kingston, and G.Skill. Prices and warranty terms may differ, so comparison shopping is advisable. Always verify the exact model number before purchase to avoid OEM variants with different specifications.