This appears to be a DB9 (RS-232) serial cable.
What it is used for
Connecting computers to networking equipment, industrial machines, POS systems, and older devices.
Programming or configuring routers, switches, and other hardware.
Serial data communication between devices.
Features visible in your photo
DB9 male connector (9-pin serial connector).
Light blue cable.
Long cable length (appears to be several meters).
Packaged as a new cable.
For your business advertisement
DB9 RS232 Serial Cable Available @ BTC Computer
Reliable serial communication cable
Suitable for networking devices, industrial equipment, POS machines, and legacy computers
Quality connectors for stable data transfer
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