First you need the 100mm x 266mm module... DDA108A-BP Single channel SDI and ASI non-reclocking distribution amplifier with up to eight outputs, with relay bypass protection option Next choose your frame size and power supplies - from 4U to desk top box... Indigo 4 CoolFlow 4U frame with power supply redundancy and passive front panel for up to 24 Crystal Vision modules Indigo 4SE CoolFlow 4U frame with power supply redundancy and passive front panel fitted with Statesman CPU for up to 24 Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 2 CoolFlow 2U frame with power supply redundancy and passive front panel for up to 12 Crystal Vision modules Indigo 2AE 2U frame with power supply redundancy and active front panel for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 2SE CoolFlow 2U frame with power supply redundancy and passive front panel fitted with Statesman CPU for up to 12 Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 1 1U frame with passive front panel for up to six Crystal Vision modules Indigo 1AE 1U frame with active front panel for up to six Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 1SE 1U frame with passive front panel fitted with Statesman CPU for up to six Crystal Vision modules. Allows Ethernet connection to a PC running Statesman Indigo 1-DP 1U frame with power supply redundancy and passive front panel for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies Indigo 1AE-DP 1U frame with power supply redundancy and active front panel for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC running Statesman Indigo 1SE-DP 1U frame with power supply redundancy and passive front panel fitted with Statesman CPU for up to six Crystal Vision modules. Includes two fixed PS-80i power supplies. Allows Ethernet connection to a PC running Statesman Indigo DT Desk top box with passive front panel for up to two Crystal Vision modules. Includes fixed power supply Indigo DTSE Desk top box with passive front panel fitted with Statesman CPU for up to two Crystal Vision modules. Includes fixed power supply. Allows Ethernet connection to a PC running Statesman PSU-160i 160 Watts power supply for 1U, 2U and 4U frames. 1U frames require one PSU-160i (no redundancy). 2U frames require either one PSU-160i (no redundancy) or two PSU-160i if power supply redundancy is required. 4U frames require minimum of two PSU-160i (with compulsory redundancy) or four PSU-160i if the power consumption in the frame exceeds 150W You need a rear module to access your inputs and outputs... RM01 Single slot frame rear module. Allows maximum number of DDA108A-BP in frame (24 in 4U, 12 in 2U, six in 1U, two in desk top box). Gives access to one SDI or ASI input and five non-reclocked SDI or ASI outputs RM02 Four slot frame rear module. One rear module used for three DDA108A-BP, allowing 18 DDA108A in 4U and nine in 2U. Gives access to one SDI or ASI input and eight non-reclocked SDI or ASI outputs RM18 Two slot frame rear module. Allows 12 DDA108A-BP in 4U, six in 2U, three in 1U and one in desk top box. Gives access to one SDI or ASI input and eight non-reclocked SDI or ASI outputs RM38 Single slot frame rear module. Allows maximum number of DDA108A-BP in frame (24 in 4U, 12 in 2U, six in 1U, two in desk top box). Includes relay bypass protection. Gives access to one SDI or ASI input and five non-reclocked SDI or ASI outputs The DDA108A-BP is controlled by board edges switches - therefore you will not require a control panel or PC software.