Plugadget USB2.0 to 4 ports RS232 DB9 Com 4 rs-232 win10 power supply Serial converter laptop ZE737 PCI to Parallel 25pin 1 x PCI-E Controller card

1 x PCI-E Controller card

Bus-powered mode and no external power required for most of peripherals

Max connection: 128 RS485/422 devices

2 NGFF disk

Power Consumption：Max1

Plugadget USB2.0 to 4 ports RS232 DB9 Com 4 rs-232 win10 power supply Serial converter laptop ZE737 PCI to Parallel 25pin 1 x PCI-E Controller cardFeatures: This USB to 4 Port RS232 Serial Splitter supports convert USB port to RS232 serial port. It can easily be converted between the computer's USB port and universal serial port, It is used in places where is not or not enough serial port. More convenient to communicate with other devices. Providing a fast access for computer without serial ports (4 RS232 ports can work at the same time). *Support USB2. 0, USB1. 0 * Support 4 Port RS232 Serial