Length	Rental price (First day rental rate)
1.5M	AU$8
10M	AU$10
20M	AU$20

SDI (Serial Digital Interface) cables are primarily used for transmitting uncompressed digital video signals, especially in professional video production environments. They utilize a 75 Ohm coaxial cable and are known for their reliability, robustness, and ability to carry signals over longer distances compared to other interfaces like HDMI.