Capacity: 4GB Memory Type: DDR3L SDRAM (Low Voltage DDR3) Speed: 1600MHz (PC3L-12800) Form Factor: SO-DIMM Pin Count: 204-pin CAS Latency: CL11 Voltage: 1.35V (Low Voltage), compatible with 1.5V systems Data Transfer Rate: 12.8GB/s ECC: Non-ECC (Error-Correcting Code) Rank: Single Rank or Dual Rank (varies by model) Module Configuration: 512M x 64-bit Compatibility: Laptops and notebooks supporting DDR3L SO-DIMM modules