DELL A8547952 COMP 4GB DDR4-2133MHZ 1.2V SRX8 SODIMMAddOn 4GB DDR4 SDRAM Memory Module 4 GB (1 x 4GB) DDR4 2133 PC4 17000 DDR4 SDRAM 2133 MHz Single rank Memory CL15 1. 20 V Non ECC Unbuffered 260 pin SoDIMM Lifetime Warranty VPN: A8547952 AA SKU: RSC554147 UPC: 821455674857 4 GB of memory to heighten your computer's performance 2133 MHz of memory speed allows you to browse web, listen to songs and use routine software simultaneously DDR4 SDRAM interface synchronizes electrical and clock signals for an