Might be a dumb question but are these two switches effectively "the same" inside?
TP-Link 8-Port Gigabit Desktop Switch
http://www.overclockers.co.uk/showproduct.php?prodid=NW-097-TP&groupid=46&catid=2316
TP-Link 8-port Unmanaged Gigabit Rackmount Switch
http://www.overclockers.co.uk/showproduct.php?prodid=NW-047-TP&groupid=46&catid=2316
TP-Link 8-Port Gigabit Desktop Switch
http://www.overclockers.co.uk/showproduct.php?prodid=NW-097-TP&groupid=46&catid=2316
TP-Link 8-port Unmanaged Gigabit Rackmount Switch
http://www.overclockers.co.uk/showproduct.php?prodid=NW-047-TP&groupid=46&catid=2316