[NF] EXTERNAL SSD hard drives

Greetings fellow Profoxers!

I see some external SSD drives on this page: http://www.newegg.com/External-SSDs/SubCategory/ID-2022?Tid=11694

My laptop is a maybe 4 years old and is running out of local disk space. I've got another laptop I can migrate to but I was thinking of just extending and still using this one yet (because I love it) and using an external HD would take care of my space issues...at least for now...and give me another area to send backups.

My question: I know SSD drives are 20x faster reportedly, but would that still apply if it's an EXTERNAL drive? I understand that using the USB 3.0 port is better than the older USB 2.x ports and earlier for transfer rates.

tia, --Mike