History of product;
tl;dr it works and comes with a free sfp+ connector.
Comes with rack ears.
Pulled from working environment. Unit was taking up space while waiting to be oucked up, space was losing company money, worth more to them to trash it than to sell it or relocate it. Insert me, tech-savvy, understand it's worth. I take it home and test it.
All cable diagnostics on ports 1~24 test (ok). SFP porta untested. Assumed working. SFP+ to fiber connector in port 27. Unit runs quiet and didn't overheat while benchtesting. I have not tested it under load, I'm a himble hobbyist and do not have enough devices or bandwidth to even consider pushing this device to it's theoretical limits.D-Link Website Description:
28-port Stackable Gigabit PoE Switch incl. 2 SFP ports & 2 10GbE SFP+ ports, 193W PoE budget
DGS-1510-28P
24 x 10/100/1000BASE-T PoE ports
2 x Gigabit SFP ports
2 x 10G SFP+ ports
Layer 2 management and security with Layer 3 capabilities
Static Routing and MSTP
193 W PoE budget