Capacity Single Module 4GB Speed up to 2666MHz Non-ECC Unbuffered 260-Pin 1.2V SODIMM. Specs Black PCB Color and Single Rank (1Rx8). Compatibility Designed for selected DDR4 Laptop, Notebook, Mini PCs, and All-In-One systems(AIO) that support 260-Pin SODIMM memory. NOT compatible with Desktop DIMM slots. Installation Plug-and-Play Upgrade, Quick and Easy to Install, no expertise required (please refer to your system's manual for guidelines). Warranty All Timetec products are high-quality and rigorously tested to meet stringent standards. Backed by Timetec Limited Lifetime Warranty and professional technical support based in the United States.