SK hynix Unbuffered Small Outline DDR3 SDRAM DIMMs are low power, high-speed operation memory modules that use DDR3 SDRAM devices. This unbuffered DDR3 SDRAM SODIMM is intended for use as main memory when installed in systems such as mobile personal computers. This particular memory kit is 1GB and operates at 1.5V. It features a 1066MHz clock and a 133MHz memory clock. This Hynix PC3-8500 SO-DIMM memory ensures stable performance, facilitating an optimal computing experience on your personal computer.