The Logitech G900 is my favorite mouse even though I lost the wireless adapter - The Verge
Amazon.com: BestParts New USB Dongle Mouse Receiver Adapter Replacement for Logitech G703 Lightspeed Gaming Mouse fit for G900 G903 G403 G603 Wireless Mouse : Electronics
USB Dongle Receiver for Logitech G903 G403 G900 G703 G603 G602 Wireless Mouse Keyboard Adapter - Walmart.com