CORSAIR high performance VENGEANCE SODIMM memory kit, 2666 M Hz CL18 1.2V, means that you can automatically boost performance of your without BIOS reconfiguration. Slim & attractive design to ensure physical compatibility with all Intel DDR4 notebooks & NUCs. Each module is built using carefully selected DRAM to allow excellent stability & is backed by Corsair’s limited lifetime warranty. Features 8GB (1x 8GB) DDR4 SODIMM kit for Intel DDR4 notebooks & NUCs. 2666 M Hz Frequency. 18-19-19-39 Latency. 1.2V Voltage. Auto-overclocking with compatible notebooks (no BIOS configuration required). Limited Lifetime Warranty.