Features
•24 pin ATX power supply connector
•Headers for Power LED, Power Switch, +5v Standby and Power-OK
•Header for use with 838-Latching Relay Module
oUsing this module turns the existing momentary power switch that all ATX PC
cases have to a latching switch using a timer relay circuit to pulse a ground
signal to ensure the power supply is turned on.
oIf the relay module is installed then the PC power switch will be connected to
the 838-Latching Relay Module instead of on the 838-PEB board.
oPress power switch to turn on and press again to turn off.
•8 x Peripheral Expansion Slots
•1 x 12v power breakout
•2 each of 5v and 3.3v power breakout
•4 x 12v 3 pin PC fan connectors
•USB Power Pass Through Connectors
oThis can be used to connect a device like a Raspberry Pi power by connecting
the RPi Power adapter to the back of the 838-PEB and using another USB
cable to connect to the Raspberry Pi to power the unit.
oThis connector does not share any connections with the ATX power supply
•USB 5v Standby Power Connector
oThis connector is connected to the +5v Standby power rail of the ATX power
supply and as long as the ATX supply is plugged into AC power there will be
power provided all the time, even when the power unit is in the off position.
oThis can be used to power up a peripheral like a Raspberry Pi Zero W, RPi2 or
RPi3 via a USB cable without having to use the Pass-Through USB connector.
oBe aware that users need to check the maximum amperage details of the ATX
power supply for the +5v Standby. Needs to be 1.5 amps max for a RPi Zero
W, 2.5 amps max for Raspberry Pi2/3. Must use the passthrough for RPi 4 or
higher.
•Use of front USB ports via USB 3.0 for Power and Data + / Data –
oGreat use for MicroGotek drives!
•Headers for Gotek1 and Gotek2 for use with external controlled rotary and display
units
•2 x RJ45 jacks to connect external rotary and display for Goteks #1 and #2.
