A-Tech DDR4 Memory RAM compatible replacement for CT16G4SFRA266 Single 16 GB Module; DDR4 SO-DIMM 260-Pin; Speeds up to 2666/2667-MHz, PC4-21300 (PC4-2666V) NON-ECC Unbuffered; JEDEC DDR4 standard 1.2V Compatible for select Laptop, Notebook, and AIO (All-in-One) Computers; *refer to your system's manual to confirm compatibility Expands your system's available memory resource improving performance, reducing bottlenecks, and increasing workload capacity All A-Tech memory modules undergo stringent quality control testing to ensure dependable and reliable performance Backed by A-Tech's Limited Lifetime Warranty and supported by our knowledgeable Tech Team available to help before and after your purchase