DIGIT-ARC read-only archive · snapshot: July 23, 2026

networking by USB

3 posts · originally from https://geek.digit.in/community/threads/networking-by-usb.4052/

dhawald
dhawald Original post #1
Dec 26, 2004 at 9:07 PM
can i connect two computers thru a USB port
without the eternet card
T
Dec 26, 2004 at 10:01 PM
Do not try this, or u will screw up both the computers. The reason is that, USB port has 4 pins,

1. +5V
2. Data In
3. Data Out
4. GND

When u connect the pins to receivers USB port, there will be conflict in his port's +5V and ur port's +5V. This may lead to seriout damage to Motherboard.

U may try to just connect data out pin of ur port to data in of other pc's port and his data out to urs. U will need to write a program to transmit some raw bits, maybe some simple protocol.

Instead, u can connect 2 PCs safely w/o ethernet card using parallel port, even win98 supports it, and has an utility called Direct Cable Connection.
T
Dec 27, 2004 at 12:18 AM
*www.thinkdigit.com/forum/viewtopic.php?t=11078&highlight=connect+usb
*www.thinkdigit.com/forum/viewtopic.php?t=10703&highlight=connect+usb
*www.thinkdigit.com/forum/viewtopic.php?t=11357&highlight=connect+usb