This article covers SAMSUNG ﾉｰﾄ用ﾒﾓﾘ 16GB DDR4 2133MHz PC4-17000 1.2V M471A2K43BB1-CPB.

Overview

Samsung's M471A2K43BB1-CPB is a 16GB DDR4-2133 SO-DIMM memory module designed for notebooks and small-form-factor PCs. Operating at a standard speed of 2133 MHz (PC4-17000), it delivers stable JEDEC-compliant performance with a low 1.2V voltage. The module uses a 260-pin SO-DIMM form factor, making it a drop-in upgrade for countless laptops that support DDR4 memory. This kit targets users who want to breathe new life into an older DDR4-equipped notebook. With 16GB of capacity, it provides enough headroom for multitasking, office productivity, and light content creation. As a Samsung-branded component, it offers the reliability and compatibility that system builders and IT professionals trust. Given the current transition to DDR5, this module is a cost-effective way to extend the useful life of a pre-DDR5 laptop.

Compatibility Guide

Form Factor: 260-pin SO-DIMM — fits any standard notebook DDR4 slot. Not compatible with desktop DIMM slots. Memory Standard: DDR4-2133 (PC4-17000). Works with any system that officially supports DDR4-2133 or slower (e.g., DDR4-1866). Will not run faster in systems that support only higher speeds like DDR4-2400 or 3200; maximum speed will be 2133 MHz. Voltage: 1.2V — standard DDR4, fully compatible. Chipset/CPU Notes: Most Intel 6th-gen Core or later, and AMD Ryzen 2000-series APUs or later with DDR4 support will work. Always check the maximum memory capacity of your specific laptop model. * Physical Fit: Standard height (~30mm). Some ultra-slim laptops may require low-profile modules; verify clearance inside the chassis.

Product Info

Released during the height of DDR4 adoption (circa 2015–2016), this Samsung module remains in active production. Pricing on Japan is roughly ¥21,364. Samsung's warranty typically covers one to two years depending on the reseller. Market positioning: entry-to-mid-range upgrade path for older laptops. It is not a high-performance enthusiast memory; it focuses on stability and compatibility over raw speed. Key specs: 16GB capacity, 2133 MHz clock, CL15 CAS latency, 1.2V operating voltage.

Best Use Cases

Reviving an aging office laptop User profile: Someone using a 2017–2020 notebook with 4GB or 8GB RAM, experiencing slowdowns with multiple browser tabs and Microsoft Office. Why this fits: 16GB at 2133 MHz is more than enough for word processing, spreadsheets, and web browsing. Samsung's reliability ensures the upgrade won't introduce system instability. Who should skip: Those whose laptop already has 16GB or more, or those needing faster memory for heavy multitasking. Compact home server or NAS build User profile: Hobbyist building a low-power file server using an older Mini ITX board with SO-DIMM support. Why this fits: DDR4-2133 is perfectly adequate for file serving, Plex transcoding (light), and home automation. Low voltage reduces heat in cramped enclosures. Who should skip: Anyone needing ECC memory for mission-critical storage; this is non-ECC. IT refurbisher or repair shop User profile: Professional who buys used laptops in bulk and upgrades them for resale. Why this fits: Samsung brand adds perceived value to refurbished units. 16GB is a sweet spot for general-purpose laptops resold to students or home users. Who should skip: If you can source cheaper equivalent modules with equal reliability, the premium for Samsung might not be justified at scale.

Things to Consider

This memory module runs at 2133 MHz, which is slower than modern DDR4-3200 standards. If your laptop supports faster memory, you'll be leaving performance on the table by using this module. Additionally, the module is a standard-height SO-DIMM; some ultra-thin laptops require low-profile SO-DIMMs that are shorter (e.g., 20mm). Check physical clearance before purchasing. Also, being a DDR4 module, it has no upgrade path to future DDR5 systems. Finally, always verify that your particular laptop model supports 16GB modules — some older chipsets have a per-slot limit of 8GB. ## FAQ
Q: Can I use this memory with an Intel Core i5-8250U (Kaby Lake-R) laptop? A: Yes. The i5-8250U officially supports DDR4-2133, and 16GB modules are within JEDEC specifications. Ensure your laptop has a free SO-DIMM slot and a maximum total capacity of 32GB or higher. Q: Will this memory work alongside a faster DDR4-3200 module in the same laptop? A: Technically yes, but both modules will downclock to the highest common speed supported by the system, typically 2133 MHz. All modules will run at the lowest speed among them, so you won't gain any benefit from the faster module. Q: Is this memory compatible with an AMD Ryzen 5 3500U laptop? A: Yes, the Ryzen 5 3500U supports DDR4-2133 and 2400 SO-DIMMs. The M471A2K43BB1-CPB will run at its native 2133 MHz. Check that the laptop's BIOS allows for 16GB single-rank or dual-rank modules (most do).

Product Disclosure (Amazon)

  • Manufacturer: サムスン(SAMSUNG)
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B01A1EH50M
  • Note: This article covers a manufacturer-made product based on Amazon listing details.