Pentax I-USB7 USB Cable for the Option
A high-quality USB cable for camera to computer connection, you can download images quickly and conveniently. It is easy to connect and use, and also features a shield covering that protects from electrical interference. This cable is compatible with the Optio 450, 550, 555, S, S4, 33WR, S40, S4i, 43WR, 750Z, S50, S5i, and X.