Corsair 16GB DDR4-2133 SO-DIMM Laptop Memory CL15 1.2V 260-pin Value Select for Intel Notebooks

The Corsair CMSO16GX4M1A2133C15 is a 16GB (1x 16GB) DDR4-2133 SO-DIMM laptop memory module with JEDEC timings of 15-15-15-36 at 1.2V, from Corsair's Value Select line (now listed simply as "Corsair Memory"), for notebooks and compact PCs based on Intel 100 to 500 series platforms.

Its SPD is set to 2133 MT/s CL15 at 1.2V, the base DDR4 standard, which makes it a safe, plug-in upgrade for older DDR4 laptops that run memory at 2133 MHz — and it works in newer DDR4 laptops too, at 2133 MHz.

• 1x Corsair 16GB DDR4-2133 SO-DIMM module (Value Select)

• A single 16GB module takes an 8GB laptop to 24GB, or a 4GB laptop to 20GB
• Standard JEDEC 2133 MT/s timing — no profiles or BIOS changes needed
• Ideal for 6th–8th gen Intel Core laptops whose memory controller runs DDR4 at 2133–2400 MHz
• In laptops that support faster DDR4, it runs at 2133 MHz (slower than 2666/3200 modules)

• Desktop PCs with full-size DIMM slots — the desktop version is CMV16GX4M1A2133C15
• DDR3 or DDR5 laptops
• Laptops with soldered memory only
• It is a single module — the 2x 8GB kit is CMSO16GX4M2A2133C15
• If your laptop supports 2666/3200 MHz and performance matters, a faster module is a better match