The CS400 Keypad offers a modern round button design and provides four additional buttons which can be used for speed dial calling. Features: - Durable metal buttons are vandal resistant - Durable metal frame with four mounting holes provides solid mounting - Includes twelve standard keypad buttons plus four additional buttons engraved S1, S2, S3 & S4 - Includes 8-pin male PCB connector on rear -Optional 9" ribbon cable with 8-pin female connector on each end Dimensions: - Keypad Section Only = 3.25" x 3.00" x 1.00" - Including Mounting Frame = 3.25" x 4.25" x 1.00"