LevelOne GSW-4876 48 port gigabit switch with 4 mini-GBIC ports.
It's a web smart switch.
Don't have the rack mount kit or the original box and software unfortunately.
It's quite a noisey switch, even when it was brand new, I think a couple of the fans could do with replacement now.
Other than that it works great.
About 3 & 1/2 years old.
$400 plus shipping.