UBorrow is another service of interlibrary loan (ILL) for the borrowing of physical items that allows you to:
Search or browse a database of 14 combined library catalogs
Discover whether or not a book is available at University of Michigan Library or within the participating institutions
Place a request that goes directly to another institution without pausing in the local interlibrary loan office
Expect a faster and more reliable turnaround time (usually within 5 business days)
Receive longer loan period for physical book loans for 12 weeks (DVDs and other special materials will still have relatively brief loan periods)
Other than those distinctions, there’s no real difference to you between a regular ILL book and a UBorrow book. You may have used a similar system at your public library—MeLCat is a consortium of 400 Michigan libraries allowing direct patron interaction. UBorrow, on the other hand, provides books from the research collections consortium of the Big Ten libraries.