CORSAIR high performance Vengeance SODIMM memory kit,  8GB (2x 4GB) 1866 M Hz 10-10-10-27,  1.5V,  means that you can automatically boost performance of your without bios reconfiguration. Slim & attractive design to ensure physical compatibility with all 2nd Generation Intel Core i 5 & i 7 notebooks. Each module is built using carefully selected DRAM to allow excellent stability & is backed by Corsair's limited lifetime warranty. ** Key Features** 
- 8GB (2x 4GB) DDR3 SODIMM kit for 2nd Generation Intel Core i 5 & i 7 notebooks. 
- 1866 M Hz 
- 10-10-10-32 latency 
- 1.5V 
- Auto-overclocking (no bios configuration required) 
- Limited Lifetime Warranty ** Specifications** 
- Density: 8GB (2x 4GB Module) 
- Speed: 1866 M Hz 
- Timing: 10-10-10-27 
- Type: DDR3 
- Format: SODIMM 
- Pin Out: 204 Pin 
- Voltage: 1.5V