Samsung M471A1K43CB1-CTD 8GB DDR4 2666MHz Laptop RAM – PC4-21300, 1Rx8, 260-Pin SO-DIMM

Overview

Give a compatible laptop a simple and effective memory upgrade with the Samsung M471A1K43CB1-CTD 8GB DDR4 Laptop Memory Module.

Built to Samsung's OEM memory specifications, this compact 8GB DDR4-2666 SO-DIMM delivers up to 2666MT/s, operates at an efficient 1.2V, and uses a single-rank 1Rx8 configuration.

Adding or replacing RAM can make a noticeable difference when running multiple browser tabs, office applications, video calls and everyday software at the same time. It is also an excellent option for repairing or restoring laptops that originally shipped with compatible Samsung DDR4 memory.

With its industry-standard 260-pin SO-DIMM form factor, PC4-21300 performance and non-ECC unbuffered design, the M471A1K43CB1-CTD is suitable for compatible notebooks, laptops and compact systems supporting DDR4 SO-DIMM memory.

Key Features & Benefits

• Give Your Laptop More Multitasking Headroom – 8GB Capacity
  Adding 8GB of RAM can provide more working memory for browsers, productivity applications, communication software and everyday multitasking, reducing the need for the operating system to constantly rely on slower storage.
• Move Data Quickly – DDR4-2666 Performance
  The module is rated for DDR4-2666 / 2666MT/s, giving compatible systems up to PC4-21300-class memory bandwidth. Samsung specifies the CTD speed grade at 2666MT/s with 19-19-19 timings.
• Designed Specifically for Compact Computers – 260-Pin SO-DIMM
  Its 260-pin SO-DIMM format is designed for laptops and other compact systems rather than full-sized desktop DIMM slots. Samsung's official datasheet identifies the M471A1K43CB1 family as a 260-pin unbuffered SO-DIMM.
• Efficient Everyday Operation – Low 1.2V Voltage
  Operating at the JEDEC-standard 1.2V, DDR4 memory provides efficient performance suitable for battery-powered laptops and compact systems.
• OEM-Grade Samsung Memory – Genuine Samsung Architecture
  Samsung designs and manufactures both the DRAM components and completed memory modules, making this a strong choice for repairs, replacements and upgrades where OEM-style memory is preferred.
• Straightforward System Compatibility – Standard DDR4 Specification
  The module uses standard JEDEC DDR4 specifications rather than proprietary gaming profiles, helping it integrate with compatible laptops designed for conventional DDR4 SO-DIMM memory.
• Single-Rank Architecture – 1Rx8 Configuration
  This module uses a 1Rx8 single-rank layout, with Samsung listing eight x8 DRAM components in the 8GB M471A1K43CB1 design. This can be important when matching existing laptop RAM.
• Reliable Error-Free Consumer Memory Architecture – Non-ECC
  The module uses a standard 64-bit non-ECC memory bus, making it appropriate for compatible mainstream notebooks and laptops that do not require server-class ECC memory.
• No Registered Buffering Required – Unbuffered Design
  This is an unbuffered SO-DIMM, which is the standard architecture used by most compatible consumer and business laptops.
• Compatible with Slower Supported DDR4 Speeds – Backward Compatibility
  Samsung explicitly states that the DDR4-2666 speed grade is backward-compatible with lower frequencies, allowing compatible systems to operate the module at a lower supported memory speed when required.
• A Practical Way to Revive an Older Laptop
  Increasing available memory can help an otherwise capable laptop remain useful for web browsing, office work, education and general computing without replacing the entire machine.
• Useful for Matching Existing OEM RAM
  If your laptop already contains Samsung M471A1K43CB1-CTD memory, using the same model can help simplify matching capacity, rank, voltage and speed specifications.
• Compact 30mm Module Height
  Samsung lists the module at 30mm high, fitting the standard compact SO-DIMM footprint required by compatible notebook memory slots.

Why Choose This Product

The Samsung M471A1K43CB1-CTD is an excellent choice when you want straightforward, dependable DDR4 laptop memory without unnecessary gaming features or overclocking profiles.

Its 8GB capacity can provide a meaningful boost to systems operating with limited memory, particularly when multitasking between browsers, Microsoft Office applications, video conferencing and other everyday programs.

The module's 2666MT/s speed, 1.2V operating voltage and single-rank 1Rx8 architecture also make it particularly useful when replacing an existing OEM memory module or matching RAM already installed in a compatible laptop.

For technicians, refurbishers and home users alike, it offers a simple way to expand or restore the memory capacity of supported DDR4 systems.

Specifications