Etekcity via Amazon offers its Etekcity Scroll X1 2400 DPI Wired USB Optical Gaming Mouse, model no. M555, for $16.98. Coupon code "GAMS5OFF" cuts it to $11.98. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $8.64.) That's tied with our mention from three weeks ago, $13 off, and the lowest total price we could find. It features an adjustable DPI up to 2,400, 125Hz to 1,000Hz adjustable polling rate, gold-plated copper braided wire, and anti-skid rubber coating.