Packaging

Aside from the mouse, one finds three two-part weights, a charging cable (USB Type-A to Type-C), wireless dongle, quick start guide, safety information guide, and warranty guide inside the box.

Weight

My scale shows around 109 g (+/- 1 g), which is almost exactly in line with the weight cited by Corsair. Three two-part weights each weighing roughly 5.5 g are included, making it possible to bring the weight up to 124 g (rounded). While not exceedingly heavy, the M65 RGB Ultra Wireless definitely isn't lightweight, no doubt owing mostly to the solid aluminium frame. Compared to the wired M65 RGB Ultra, the Wireless weighs 11 g more, which is almost entirely due to the battery.

Cable

The M65 RGB Ultra Wireless comes with a regular rubber charging cable (USB Type-A to Type-C). There is no anchor at the mouse-end of the cable, so it may come loose during use, although the connector sits tight. In terms of flexibility, it can only be described as majorly stiff, even more so in comparison with many of its competitors. As such, I consider this cable unusably stiff for wired use. Its measured length is 1.75 m.

As the M65 RGB Ultra Wireless lacks a wireless extender, the wireless dongle needs to be plugged directly into a USB port. When doing so, as per Intel's documentation, it is strongly recommended not to use a USB 3.x port, as ports of this type may introduce interference adversely affecting wireless operation. A storage compartment for the wireless dongle is located on the bottom of the mouse.

Feet

The feet on the M65 RGB Ultra Wireless are regular black-dyed PTFE (Teflon) feet. Glide is decent.