WHS Backup Drive Question

[DeaconFrost]

I have an external drive that I plan to use as my backup device for my WHS, which is an HP EX490. If I use the eSATA connector, will I be able to eject the device like I can with an external USB drive when I don't need it? I'm planning to only use the drive about once a week to run a backup, and that's about it.