ihocon: Azio PRISM USB Keyboard with 7 Colorful Backlights Amazon 現在 Azio PRISM USB Keyboard with 7 Colorful Backlights 原價 $51.11, 特價 $39.99, 在價格的下方有個 $10 Off coupon (需先 sign in Amazon account), 按 “Click Coupon”, 可再省 $10, 最後變成 $29.99, 節省 $21.12(41% Off), 免運費!!