Vaseky Universal High Speed DDR3 4G/8G Memory RAM Module Computer Accessories - black, 4g1600 Specifications: Made from high quality material, durable for use. 4G/8G DDR3 memory RAM module for laptop. Smooth running, ideal for upgrading your notebook. Item Name: Memory Material: PCB Memory: 4GB/8GB Frequency: 1333MHz/1600MHz Memory Type: DDR3 Features: Easy Installation, DDR3, PC Accessories Length: 13.7cm/5.39" (Approx.) Width: 3.5cm/1.38" (Approx.) Thickness: 0.8cm/0.31" (Approx.) Notes: Due to the light and screen setting difference, the item’s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Memory