The RTW 1163 Snake Cable for Surround Monitors Interface Box is 13.2" in length, and distributes the signal from its 25-Pin Sub-D female socket to 8 x XLR-M connectors. Those connectors include four AES3 inputs and four digital outputs.
The 1163 Snake works with the 10689-PLUS and 11900 Surround-Monitors, SurroundControls 31900, 31960, and TM3-3G.