As one of its daily deals, Amazon offers Prime members the Corsair Raptor M40 Gaming Mouse, model no. CH-9000041-NA, for $34.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it starts at $8.61.) That's the lowest total price we could find by $25. This USB mouse features seven programmable buttons, a maximum 4,000 dpi, and three adjustable tuning zones. Deal ends today.