The 480 GB SSD upgrade costs right around $1000. The OWC 6G SSDs are about 3x faster than the Apple Samsung factory SSDs. The OWC 480 GB 6G SSD upgrade and 256 GB Apple Samsung 3G SSD side by side. The problem is that the performance difference between the two Apple 3G drives is pretty significant, the Samsung is about 2X or more faster than the Toshiba SSD, see the Anantech's MBA review. A Samsung 256 GB drive will show up as - Apple SSD SM256C. The SM prefix indicates a Samsung drive while the TS indicates Toshiba. You can tell what SSD type you have by looking at the model string in a System Report from your machine. Go to the Apple menu > About this mac > more info > System Report. This doesn't sound like anything to worry and really its not but you should know that the Samsung SSDs are much faster than the Toshiba units and there is no way of knowing which one you get before booting up the machine for the first time. The OWC 480 GB 6G SSD upgrade installed on my 13 inch Macbook air with 1.8GHz Dual-Core Intel Core i7.Īpple uses both Toshiba SSDs and Samsung SSDs on the current 2011 MBA.
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