Null modem pinout(laptop pc with usb communicate with destop pc(with DB9 com port)):
2-TXD(yellow), 3-RXD(orange),5-GND(GND), 7-CTS(green),8-RTS(brown), 1/4/6/9-NC
USB to Null Modem serial adapter corrects DTE/DCE conflicts without requiring additional adapters or cables
The CP2102 chipset is highly customizable and broadly compatible, making it the ideal solution for any setup
Portable USB-Powered design requires no bulky power adapter or outlet
USB to Null Modem (Cross-Wired) RS232 Serial Adapter
Integrated CP2102 USB UART Chip
Baud Rate up to 921.6Kbps
COM Port assignments maintained across reboot
USB-powered - no external power adapter required
FTDI USB to Null Modem Serial Adapter Cable (1-Port) converts an available USB 1.1 or 2.0 port into an RS232 Null Modem serial DB9 port, solving DCE/DTE conflicts directly, without requiring additional cross-wired serial cables or adapters.
USB to Null Modem (Cross-Wired) RS232 Serial Adapte
USB2.0 RS232 to DB9 female cable
CP2102+ZT213 chip
USB2.0 standard, full speed
Baud Rate up to 921.6Kb
Null modem pinout(laptop pc with usb communicate with destop pc(with DB9 com port)):
2-TXD(yellow), 3-RXD(orange),5-GND(GND), 7-CTS(green),8-RTS(brown), 1/4/6/9-NC
Driverdownload : www.silab.com
Standard DB9 COM port pinout: pc(host) with usb to RS232 terminal device(slave)
2- RXD(yellow), 3-TXD(orange),5-GND(GND), 7-RTS(green),8-CTS(brown), 1/4/6/9-NC
USB to female serial port cable allows you to connects a PC without serial port to a serial device because it adds a 9 pin DB9 port to laptop or desktop via USB port
Portable USB-Powered design requires no bulky power adapter with superior performance, offering an easy connectivity for serial plug devices
Built as cp2102 serial cable for Windows 10, 8, 7, Mac OS8 or higher, Linux 2.4.0 and later
USB male to serial female cable is designed with a high performance quality processor chip (cp2102 Chipset) that makes this USB to RS232 converter one of the most reliable adapters on the market
6 feet USB 2.0 to RS232 DB9 serial cable (male to female) is long enough for your devices to reach to a place needed (standard pinout: pin 2- RXD, Pin 3- TXD, Pin 5 - GND)
Package: 1 x usb db9 rs232 female cable

About CP2102
Single-Chip USB to UART Data Transfer
-Integrated USB transceiver; no external resistors required
-Integrated clock; no external crystal required
-Internal 1024-byte programmable ROM for vendor ID, product ID, serial number, power descriptor, release number, and product description strings
- EEPROM (CP2102)
- EPROM (One-time programmable) (CP2109)
-On-chip power-on reset circuit
-On-chip voltage regulator
- 3.3 V output (CP2102)
- 3.45 V output (CP2109)
-100% pin and software compatible with CP2101
USB Function Controller
-USB Specification 2.0 compliant; full-speed (12 Mbps)
-USB suspend states supported via SUSPEND pins
Asynchronous Serial Data BUS (UART)
-All handshaking and modem interface signals
-Data formats supported:
- Data bits: 5, 6, 7, and 8
- Stop bits: 1, 1.5, and 2
- Parity: odd, even, mark, space, no parity
-Baud rates: 300 bps to 1 Mbps
-576 Byte receive buffer; 640 byte transmit buffer
-Hardware or X-On/X-Off handshaking supported
-Event character support
-Line break transmission
Virtual COM Port Device Drivers
-Works with existing COM port PC Applications
-Royalty-free distribution license
-Windows 10/8/7/Vista/Server 2003/XP/2000
-Mac OS-X/OS-9
-Linux
USBXpress™ Direct Driver Support
-Royalty-Free Distribution License
-Windows 7/Vista/XP/Server 2003/2000
-Windows CE
Example Applications
-Upgrade of RS-232 legacy devices to USB
-Cellular phone USB interface cable
-USB interface cable
-USB to RS-232 serial adapter
Supply Voltage
-Self-powered: 3.0 to 3.6 V
-USB bus powered: 4.0 to 5.25 V
The CP210x USB to UART Bridge Virtual COM Port (VCP) drivers are required for device operation as a Virtual COM Port to facilitate host communication with CP210x products. These devices can also interface to a host using the direct access driver. These drivers are static examples detailed in application note 197: The Serial Communications Guide for the CP210x, download an example below:
The CP210x Manufacturing DLL and Runtime DLL have been updated and must be used with v6.0 and later of the CP210x Windows VCP Driver. Application Note Software downloads affected are AN144SW.zip, AN205SW.zip and AN223SW.zip. If you are using a 5.x driver and need support you can download archived Application Note Software.
Platform | Software | Release Notes |
Windows 7/8/8.1/10 | Download VCP (5.3 MB) (Default) | |
Windows 7/8/8.1/10 |
Platform | Software | Release Notes |
Windows XP/Server 2003/Vista/7/8/8.1 |
Platform | Software | Release Notes |
Windows 2K |
Platform | Software | Release Notes |
WinCE 6.0 (2.1) | ||
WinCE 5.0 (2.1) |
Platform | Software | Release Notes |
Mac OSX |
Platform | Software | Release Notes |
Linux 3.x.x | ||
Linux 2.6.x |
Download for Android
|

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