Total Micro 4GB DDR3 SDRAM Memory Module - For Desktop PC - 4 GB - DDR3-1333/PC3-10600 DDR3 SDRAM - 1333 MHz - CL9 - 1.50 V - Non-ECC - Unbuffered - 240-pin - DIMM Allow convenient and fast access to the stored information your computer is actively using for maximum efficiency No matter how heavy and numerous the applications that you are using, 1333 MHz memory speed with unbuffered signal will run them smoothly DIMM 4 GB memory allows you to have more programs open at a time 240-pin-pin DDR3 SDRAM operates at an effective bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation 240-pin for enhanced, dependable system performance with maximum usability CL9 CAS latency for reliable, fast response and improved performance Desktop PC device support for your ram module for maximum productivity and convenience DIMM form factor with 240-pin and 4 GB memory size effectively lessens the electrical load on the memory controller to allow maximum feasibility Unbuffered signal processing allows higher accuracy and enhanced ram module performance