Here’s the Kingston SSDNow V300 240 GB Drive. Kingston claims 450 MB/s read and write speeds. Since this drive is SATA 3.0 (6 GB/s) complaint I don’t see any reason why it wouldn’t reach those numbers.
The actual drive in the Kingston SSDNow V300 240G Upgrade Kit is only 7mm thick. There is a 2mm bracket to bring the thickness to 9 mm as most notebooks use a thickness of 9 to 12 mm. The bracket helps to ensure the drive won’t rattle around inside the notebook.
The Kingston SSDNow V300 240G Upgrade Kit includes a USB 2.0 enclosure for the drive, or if you’re upgrading the drive in a laptop is can be used to house your old drive. No external power is needed and the drive get its power from the USB port.
Opening the USB 2.0 enclosure is pretty easy. Simply slide the lock to the unlock position and with your thumbs pull the back cover of the drive bay towards the locking indicators.