Laptop 4 GB DDR4. 260-pin SO-DIMM 1 x 4 GB. 1.2 V. Features. Memory voltage. 1.2 V. ECC. No. Memory form factor. 260-pin SO-DIMM. Component for. Laptop. Memory clock speed. 2666 MHz. Internal memory type. DDR4. Memory layout (modules x size). 1 x 4 GB. Internal memory. 4 GB. Buffered memory type. Unregistered (unbuffered). Logistics data. Harmonized System (HS) code. 84733020. Other features. Chips organisation. 1Rx16