Transcend 4GB DDR4 2666mhz Laptop RAM

Capacity: 4GB Memory Type: DDR4 SDRAM Speed: 2666 MHz (PC4-21300) Form Factor: SODIMM (Small Outline DIMM) Latency: CL19 Voltage: 1.2V Pins: 260-pin Error Checking: Non-ECC (Non-Error Correction Code) Rank: Single Rank or Dual Rank (varies by model) Module Configuration: 512MB x 64 (Single Rank) or 1GB x 64 (Dual Rank) Operating Temperature: 0°C to 85°C Compatibility: Compatible with laptops supporting DDR4 2666 MHz memory Dimensions: Standard SODIMM dimensions (approx. 67.6mm x 30mm)