Power adaptor for router/switch

[Trex]

I got couple of D-Link 10/100 switches(used) from a local isp for 100₹ each without adaptor. The price for adaptor on Amazon are above 200. Does it make sense to buy those at that price while the switch itself is of half the price.
Or can someone point me to any store where I can get these adaptor for cheap?

 

[JB701]

i think 5v phone chargers might work with those low power switches of course the problem is it uses typec/microusb instead of barrel jack

 

[Trex]

@JB701 thats exactly what I did. Cut the micro usb cord and replaced it with 3.5mm dc jack and used it with a spare usb 5v mobile adaptor