Capacity: 16GB Memory Type: DDR4 SDRAM Speed: 2666MHz (PC4-21300) Form Factor: SO-DIMM (Small Outline DIMM) Pin Count: 260-pin CAS Latency: CL19 Voltage: 1.2V ECC: No (Non-ECC) Rank: Dual Rank (2Rx8) Module Configuration: 2048M x 64-bit Compatibility: Suitable for laptops and notebooks that support DDR4 SO-DIMM memory Buffered/Unbuffered: Unbuffered Operating Temperature: Standard operating temperature range for laptops