Capacity:128 GB The Jet Drive Lite series is specifically designed for MacBook Air and MacBook Pro with Retina display computers. Transcends Jet Drive Lite expansion cards are a quick and easy way to gain the additional space you need without adding any bulk to your MacBook computer. Simply insert Jet Drive Lite into the card reader slot on the side of your MacBook and instantly boost your storage capacity. Jet Drive Lite cards are built with the highest quality MLC flash and can achieve read speeds of up to 95MB/s and write speeds of up to 60MB/s. Perfect for Time Machine backups, iTunes libraries, or anything in-between. With a flush profile that's tailor-made for each MacBook model, Transcends Jet Drive Lite expansion cards are designed to seamlessly integrate with your MacBook. Jet Drive Lite expansion cards include the free download of Transcends exclusive Jet Drive Toolbox software which allow users to recover the accidentally deleted images, videos, MP3 and PDF files in just a few easy clicks. Jet Drive Lite flash expansion cards are manufactured using advanced COB (chip onboard) technology, making them resistant to water, dust, and shock. So regardless of what kind of adventures you decide to embark on with your MacBook, you can count on Jet Drive Lite expansion cards to keep your data safe.