Who knows. . . I have a 60GB notebook drive that I mounted myself into a Vantek enclosure. . . it does not work with ICON. . . but not only it has no external power supply, but is formatted to NTFS too boot! G. Guido Dante Corona IBM Research, Human Ability & Accessibility Center, (HA&AC) Austin Tx. Phone: 512. 838. 9735. Email: guidoc@xxxxxxxxxxx Web: http://www.ibm.com/able ". . . Maybe it was only those who were most certain they were right who were guaranteed to be wrong. And that maybe, just maybe, those who questioned the most were in the end those who came closest to being wise." [David Poyer, The Command] "David Tanner" <David.Tanner@xxxxxxxxxxx> Sent by: icon-discuss-bounce@xxxxxxxxxxxxx 04/15/2008 07:55 PM Please respond to icon-discuss@xxxxxxxxxxxxx To icon-discuss@xxxxxxxxxxxxx, marc@xxxxxxxxxxxxx cc Subject [icon-discuss] Re: Anyone Successfully Using Western Digital Passport Drive? So would this mean that a Passport 160 GB might work and a 250 GB might not because of a higher power requirement to run the larger drive? David Tanner Rehabilitation Program Specialist 3 Assistive Technology Specialist Assistive Technology Department MN State Services f/t Blind Office- 651-642-0795 Cell- 651-270-2233 Skype name: dtat100 >>> marc@xxxxxxxxxxxxx 4/15/2008 6:51 PM >>> Many USB drives aren't specifically USB spec compliant and require an external power supply. I expect that may be the case if the drive starts and stops. USB says that a device can only expect a certain amount of power if it is connected to one port. Many USB hubs, including those inside laptops, have multiple ports, and make the total power for all the ports accessible to a single device like a CD ROM drive or hard drive. Marc Icon Discuss Mailing List icon-discuss@xxxxxxxxxxxxx //www.freelists.org/list/icon-discuss To unsubscribe from the list send a blank message with unsubscribe in the subject line to: icon-discuss-request@xxxxxxxxxxxxx To post to this list, send your message to: icon-discuss@xxxxxxxxxxxxx For answers to the most frequently asked questions about Icon and Braille +, Visit the LevelStar and APH FAQ pages: Visit the LevelStar FAQ page at http://www.levelstar.com/support-faqs.php Visit the APH FAQ page at http://sun1.aph.org/webcast/brailleplus2/faq.html