The OCZ PC3-10666 is a DDR3-SDRAM module which significantly enhances the performance of your desktop computer. With a memory of 4 GB, this OCZ RAM module enables multiple applications to run concurrently without developing any glitches. This DDR3-SDRAM has a memory speed of 1,333 MHz, letting you rapidly access the stored or frequently used data. The synchronous interface of the OCZ PC3-10666 module allows for a more complex chip pattern, resulting in better performance and higher speeds. Moreover, this OCZ RAM module features a Platinum Z3 XTC Heatspreader which dissipates heat and does not allow hot air to come in direct contact with the memory ICs. If you are looking for a RAM that delivers decent performance, this OCZ RAM module will certainly meet your expectations.