The Transcend JetRam DDR3 4 GB Laptop RAM (JM1333KSH-4G) memory module is designed to add even more firepower to your computer. It is designed for those who want to multitask and take the performance to the max. The memory module has a capacity of 4GB. It is a DDR3 type memory and is compatible with all DDR3-1333 systems. The memory module has Single Channel Memory Configuration. The module has a CAS latency of 9. The memory module has 204-pin configuration. It has a clock speed of 667MHz and has 1.5V specified voltage.