iOmega Zip 250 External Drive 250MB Blue/Gray USB Powered Z250USBPCMBP V1 iOmega Zip 250 External Drive 250MB Blue/Gray USB Powered Z250USBPCMBP V1. Material: Plastic. Material: Metal. 6.6in length x 4.75in width x 0.75in height. Actual item size. Country of Manufacture: Malaysia. Feature: Part Number: 30363601. Portable. Detachable USB cable.