Electronics123
USA assembled
Carl's
Electronics USA
Ozitronics Located in
Australia
Qkits Canadian
Quasar Electronics Located in the UK
Assembled or in kit form these will need a power supply and a printer cable.
Suitable for Serial Timer
This is a list of locations that can supply the K108 serial port to relay board
Electronics123
USA
Carl's
Electronics USA
Ozitronics Located in
Australia
Qkits Canadian
VOTI Located in
The Netherlands
A 12VDC power source such as a 12VDC 450mA plug pack is required to operate the relays.
Suitable for Serial Timer USB
Relayduino USB/RS485 IO Module 12VDC
from Ocean Controls
8 Channel USB Relay from Pencom