Netgear says this is a unit with silent operation. As we look at the Netgear product page, we see an interesting spec mentioned. On the other side, we see three sets of circular cutout patterns. Still, this is not a hot-swappable PSU putting it somewhere between those solutions. Many lower-end and small PoE switches have external power supplies, but at this level, we see an internal power supply. The big feature is probably the power input. There is a sticker with serial number and MAC address information. The rear of the unit has a Kensington lock slot. Effectively one cannot use each port simultaneously up to its maximum. If you take 60 x 8 and 30 x 8 you get 720W of port power. Ports 1-8 are the PoE++ ports with up to 60W each of power. When it comes to the ports, we have two blocks. Netgear GS516UP PoE Switch DIP Switch And LED PCB

Since this has the DIP switch, it also has a little PCB and cable behind the faceplate. Netgear GS516UP PoE Switch 802.3bt Mode Dip Switches Typically these days you would not use the “re-802.3bt mode, but that option is here and is selectable on blocks of ports 1-4 and 5-8. Before PoE++ 802.3bt in 2018, there were a number of products that needed higher power output but were built to previous standards like UPOE. What is a bit different is that there are two DIP switches. On the left side of the switch, there are obligatory LED markers. Netgear GS516UP Font W Rack Ears Installed This makes the unit versatile enough that it can be rack-mounted but can also be a desk/ shelf top unit.

Dimensions are 330 x 207 x 43 mm or 12.99 in. The switch itself is 1U in height but is nowhere near as wide as a standard 1U rack. One item we wanted to point out was what we found in the unit we purchased off of Amazon since there was something strange with our unit. This is an unmanaged gigabit switch, with a twist: it is both a PoE+ and a PoE++ switch.

Sometimes you just need to put power over an Ethernet cable and that is what the Netgear GS516UP is all about. Netgear GS516UP PoE Switch Port Angle View

Netgear serial number location on c7500