Upgrade the memory of your iMac with this set of 4 Elpida DDR3 SDRAM modules. Each module has a capacity of 2GB and operates at a bus speed of PC3-10600 (DDR3-1333). These modules are in good working condition and have been previously used. They are compatible with iMac computers and come in the 1Rx8 PC3-10600S-9-10-B2 configuration. Expand your iMac\'s performance with this reliable memory upgrade.