On the back of the keyboard, the user finds a USB 2.0 port to connect a gaming-grade mouse or a digital headset, for instance. Right beside the port, there’s a thick braided cable that ends in two USB connectors (2.0 and 3.0) and two 3.5 mm audio jacks (headphone and earphone). All connectors come protected by a plastic cover. The USB 3.0 port and the two audio jacks are located on the right side of the Osmium.
The underside houses four retractable feet and two latches for the non-rubberized plastic wrist rest.
Besides the wrist rest, the peripheral comes with a key extraction tool and four extra keys with symbols engraved on them. They can act as replacements to help the user visualize the functions and macros he or she programmed, or they can simply decorate the peripheral.