The DS-409+ is a mostly square black box with a vented front. Some LEDs grace a mid-height bezel, as well as a power button. There are no ports on the front, and the sides are blank, as well.
The rear has a pair of fans to keep the hard drives cool. The power port, Gigabit Ethernet port, dual USB ports, and a single eSATA port are located on the bottom of the rear. The bottom has a simple label with the Synology logo and some regulatory logos.
Synology preloaded our review unit with some drives, but I’m sure the installation is little more than sliding the drives into place and connecting them. This open cable design may save on some PCB costs (and replacement costs if a cable dies), but it’s not as slick as being able to simply slide the drive in and push it into the connectors on a backboard PCB.