As one of its daily deals, Newegg offers the Cougar 500K Gaming Mechanical Keyboard in Black, model no. KBC500-WRNSB, for $49.99. This $10 mail-in rebate cuts it to $39.99. With free shipping, that's the lowest total price we could find by $57. It features a full key backlight, on-the-fly macro recording key, multi-media keys, and detachable palm rest. Deal ends today.