The Internal SSD DIY Kit for Apple iMac 21.5" from Other World Computing includes an iMac to SSD SATA 6 Gb/s data power cable and a thermal-safe adhesive mounting set for all Apple iMac 21.5" 2011 models. Experience faster booting and data transfer speeds up to 559 Mb/s by adding an external 3G or 6G solid state drive to your hard drive only-equipped iMac.