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EVC-8505 EVC-8503
Here is the Pinout of DB9 female(plug) RS-232/RS-485
Here is the Pin numbers for DB9 Male (connector on computer)

EVC-8505 EVC-8503 2.5inch SSD installation tutorial
you can download PDF file here:
EVC-8505 EVC-8503 2.5inch SSD installation tutorial
- Tools needed:
- Install the bracket onto the 2.5”SATA SSD/HDD.
- Unscrew the 2 screws on the PCB
- Screw the 2 hex pillars on the PCB
- Plug the 2.5”SATA SSD/HDD onto the 2.5” SATA socket
- Screw back the 2 screws on the PCB
- And done.
you can download PDF file here:
EVC-8505 EVC-8503 2.5inch SSD installation tutorial