Weme via Amazon offers its Weme SuperSpeed USB 3.0 to RJ45 Gigabit Ethernet Adapter, model no. LYSB00GQRZU5Q-CMPTRACCS, for $12.99. Coupon code "HSE5OBCB" cuts it to $4.94. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.10.) That's a buck under our February mention, $25 off, and the lowest total price we could find. It features a USB 3.0 A male to RJ45 female adapter and supports data rates of up to 1,000Mb/s.