Samsung 4GB DDR4 Memory Module 260-pin SO-DIMM 2133 MHz M471A5143EB0-CPB Features CAS latency: 15 Internal memory: 4 GB Memory layout (modules x size): 1 x 4 GB Internal memory type: DDR4 Memory clock speed: 2133 MHz Component for: Laptop Memory form factor: 260-pin SO-DIMM ECC: No Memory ranking: 1 Memory voltage: 1.2 V Weight & dimensions Width: 67.6 mm Height: 30 mm.
eBay