USB to RS-232 Serial Adapters

Discover Coolgear’s top-rated USB to RS-232 adapters, expertly engineered to ensure flawless serial communication for industrial and commercial applications. Our high-performance adapters bridge the gap between USB and RS-232 serial devices, offering an ideal solution for modernizing legacy systems. With features like easy plug-and-play installation, durable construction, and wide compatibility with Windows, Mac, and Linux operating systems, Coolgear’s USB to RS-232 adapters are perfect for enhancing data transfer reliability. Trust Coolgear for the best USB to RS-232 adapters, ensuring efficient and dependable connectivity in your automation and communication systems.

Sort by Popularity

Sort by Popularity Sort by Rating Sort by Price low to high Sort by Price high to low Sort by Newness Sort by Name A - Z Sort by Name Z - A

Serial Ports

1

2

4

8

16

32

Housing Material

Plastic

Steel

Filters Sort results

Reset Apply

	Name	Model No.	Baud Rate	Serial Ports	Upstream Ports	FIFO Receive	FIFO Transmit	MSRP	Quantity
	Mini USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & 3ft. USB Extension Cable	USBG-232MINI	921.6K bps	1	1 Type-A Male USB	128 bytes	256 bytes	$25.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	6ft. USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & FTDI Chipset	USBG-232MM	921.6K bps	1	1 Type-A Male USB	512 bytes	512 bytes	$27.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	USB to Serial RS-232 DB9 Adapter FTDI Chipset w/ 15kV ESD Protection, Windows 11 Support	USBG-232	921.6K bps	1	1 Type-A Male USB	512 bytes	512 bytes	$27.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	USB 2.0 to RS-232 / RS-422 / RS-485 Selectable Industrial Serial Adapter w/ 15kV ESD Surge Protection	USBG-COMi-M	921.6K bps	1	1 Type-B Female USB	512 bytes	512 bytes	$82.95	Max: 26 Min: 1 Step: 1	Add to cart	Learn More
	2-Port USB 2.0 to RS-232 DB-9 Industrial Serial Adapter w/ 15kV ESD Surge Protection	USBG-2COM-M	921.6K bps	2	1 Type-B Female USB	128 bytes	384 bytes	$98.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	USB to RS-232 Isolated TTL | CMOS 5ft. Adapter Cable w/ TB	USB-232TTLMOS-IS	921.6K bps	1	1 Type-A Male USB			$54.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	2-Port USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV Surge Protection & 3 ft. USB Extension Cable	USBG-232FT-1	921.6K bps	2	1 Type-A Male USB	128 bytes	384 bytes	$49.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	Single Port High-Speed USB 2.0 to Serial RS-232 Industrial Adapter w/ FTDI Chipset	USBG-COM-M	921.6K bps	1	1 Type-B Female USB	512 bytes	512 bytes	$43.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	4-Port USB to RS232 Adapter FTDI Cable	CG-4X232FTDI	921.6K bps	4	1 Type-A Male USB			$98.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	Single Port Industrial Adapter USB 2.0 to RS-232 / 422 / 485 w/ FTDI Chip	USB-COMiPLUS		1	1 Type-A Male USB	384 bytes	128 bytes	$65.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	4-Port USB 2.0 to RS-232 DB-9 Serial Adapter w/ 15kV ESD Protection & FTDI Chipset	USB2-4COM-M	921.6K bps	4	1 Type-B Female USB	384 bytes	128 bytes	$109.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	Single Port RS-232 USB to Serial Adapter w/ Optical Isolation & Surge Protection	USBG-COM-SI-M	921.6K bps	1	1 Type-B Female USB	512 bytes	512 bytes	$109.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	Dual Port USB 2.0 to RS-232 DB-9 Serial Adapter w/ FTDI Chip	XC-232-C	921.6K bps	2	1 Type-B Female USB	4096 bytes	4096 bytes	$65.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	4-Port Industrial USB 2.0 to RS-232 / 422 / 485 Serial TB Adapter w/ Optical Isolation & Surge Protection	USB2-4COMi-SI-TB	921.6K bps	4	1 Type-B Female USB	2,000 bytes	2,000 bytes	$249.99	Max: Min: 1 Step: 1	Add to cart	Learn More
	USB to Industrial 5Volt RS232 Serial Adapter FTDI	USB-COMPlus	921.6K bps	1	1 Type-A Male USB	384 bytes	128 bytes	$32.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	32 Port RS-232 USB-to-Serial Adapter	USB-32COM-RM	921.6K bps	32	1 Type-A Male USB	384 bytes	128 bytes	$659.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	16-Port Industrial RS232 to USB 2.0 Hi-Speed Serial Adapter	CG-16COM-MINI	921.6K bps	16	1 Type-B Female USB	512 bytes	512 bytes	$399.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	USB to RS232 TTL | CMOS Adapter Cable with Terminal Block	USB-232TTLMOS	921.6K bps	1	1 Type-A Male USB			$43.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	USB2 to 8-Port RS232-422-485 Serial TB Adapter	USB2-8COMi-TB	921.6K bps	8	1 Type-B Female USB	2,000 bytes	2,000 bytes	$299.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	4 Port RS-232 USB to Serial Adapter w/ Optical Isolation & Surge Protection	CM-41042	921.6K bps	4	1 Type-B Female USB	512 bytes	512 bytes	$269.95	Max: 20 Min: 1 Step: 1	Add to cart	Learn More
	USB2 to 8-Port RS232-422-485 Serial TB Adapter Isolation | Surge	USB2-8COMi-SI-TB	921.6K bps	8	1 Type-B Female USB	2,000 bytes	2,000 bytes	$399.99	Max: Min: 1 Step: 1	Add to cart	Learn More
	4 Port USB to Serial Adapter RS-232 with FTDI Chip	USBG-4FTDI		4	1 Type-B Female USB			$87.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	36in. USB to DB-9 Serial RS-232 High Speed Adapter w/ FTDI Chipset	USBG-RS232-F36	921.6K bps	1	1 Type-A Male USB			$27.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	USB 4-Port Serial Adapter – USB 2.0 to DB-9 Port RS232 with FTDI CHIP	USBG-4X232P1	921.6K bps	4	1 Type-A Male USB			$126.95	Max: 14 Min: 1 Step: 1	Add to cart	Learn More
	USB 2 to Industrial 4-Port RS232-422-485 Serial TB Adapter	USB2-4COMi-TB	921.6K bps	4	1 Type-B Female USB	2,000 bytes	2,000 bytes	$189.99	Max: Min: 1 Step: 1	Add to cart	Learn More
	8 Port USB to RS-232/422/485 Octal Adapter	USB-8COMi-RM	921.6K bps	8	1 Type-B Female USB	384 bytes	128 bytes	$409.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	16 Port RS-232 Rack Mountable USB to Serial Adapter	USB-16COM-RM	921.6K bps	16	1 Type-B Female USB	384 bytes	128 bytes	$461.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	4-Port RS-232 USB to Serial Adapter Data Control Box	USB-4COM	921.6K bps	4	1 Micro Type-B Female USB	384 bytes	128 bytes	$109.95	Max: 5 Min: 1 Step: 1	Add to cart	Learn More
	72 Inch USB to DB-9 Serial High Speed Adapter with FTDI Chipset	USBG-RS232-F72	921.6K bps	1	1 Type-A Male USB			$32.95	Max: 297 Min: 1 Step: 1	Add to cart	Learn More
	USB 4 Port Serial DB-9 RS-232 Adapter Box – Prolific Chipset	USB-4XRS232	1.2Mbps	4	1 Type-B Female USB	256 bytes	256 bytes	$97.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	16 Port USB to RS-232 422/485 Metal Serial Adapter DIN-Rail Mount	USB-16COMi-RM	921.6K bps	16	1 Type-B Female USB	384 bytes	128 bytes	$699.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	36 Inch USB to DB-9 Serial High Speed Adapter with Prolific Chipset	USBG-RS232-P36	921.6K bps	1	1 Type-A Male USB			$27.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	Industrial 8-Port DB-9 RS232 to USB Adapter w/ISO and Surge Protection	CM-41082	921.6K bps	8	1 Type-B Female USB	512 bytes	512 bytes	$399.95	Max: 18 Min: 1 Step: 1	Add to cart	Learn More
	USB C to RS-232 6FT Serial Adapter Black w/FTDI Chipset DB9 male	USBG-232MM-C	921.6K bps	1	1 Type-C Male USB	512 bytes	512 bytes	$27.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	Dual-Port RS-232 to Ethernet Data Gateway TCP/IP Industrial Metal Case	MSD-SRF2XM	115.2K bps	2	N/A			$186.95	Max: 24 Min: 1 Step: 1	Add to cart	Learn More
	72 Inch USB DB-9 Serial Hi-Speed Adapter – Prolific Chipset	USBG-RS232-P72	921.6K bps	1	1 Type-A Male USB			$32.95	Max: 566 Min: 1 Step: 1	Add to cart	Learn More
	Rugged Industrial 8-Port Terminal Block RS232/422/485 to USB Adapter	SA-8PXTB	921.6K bps	8	1 Type-B Female USB	128 bytes	128 bytes	$329.99	Max: 1 Min: 1 Step: 1	Add to cart	Learn More
	USB to Serial 16 Port RS-232 Compact Adapter Two Octopus Cables	USB2-16COM-M-CBL	921.6K bps	16	1 Type-B Female USB	384 bytes	128 bytes	$417.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	4-Port RS-232 USB to Serial Adapter – Octopus Cable DIN Rail	USB2-4COM-M-CBL	921.6K bps	4	1 Type-B Female USB	384 bytes	128 bytes	$109.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	1-Port USB to Serial Adapter (RS-232/422/485) , DIN-rail	USB-COMi-PRO		1	1 Type-B Female USB	512 bytes	512 bytes	$98.95	Max: 4 Min: 1 Step: 1	Add to cart	Learn More
	RS232/422/485 to USB 2.0 Serial Adapter Combo	CG-232485CBO	921.6K bps	2	1 Type-B Female USB			$98.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	2-Port USB to Serial Adapter (RS-232/422/485) , DIN-rail	USB-2COMi-PRO		2	1 Type-B Female USB	512 bytes	512 bytes	$164.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	Eight Port USB to Serial Adapter Box with Prolific Chipset	USBG-8X-RS232	1.2Mbps	8	N/A	256 bytes	256 bytes	$181.95	Max: Min: 1 Step: 1	Add to cart	Learn More
	2-Port USB 2.0 to RS-232 DB-9 Industrial Serial Adapter w/ 25kV ESD & 2kV Optical Isolation Protection	USB-2COM-SI-M	921.6K bps	2	1 Type-B Female USB	256 bytes	128 bytes	$149.89	Max: Min: 1 Step: 1	Add to cart	Learn More
	RS-232 / RS-422 / RS-485 to USB 2.0 Adapter w/ Isolation & Surge Protection	CG-USBISOCOM-PRO	921.6K bps	1	1 Type-B Female USB			$134.95	Max: 2 Min: 1 Step: 1	Add to cart	Learn More
	4 port USB 2.0 to RS 232 Auto Switch FTDI Chipset	CG-4URS232A		1	4 Type-B Female USB			$76.95	Max: 10 Min: 1 Step: 1	Add to cart	Learn More
	4 Port USB 2.0 to RS 232 Manual Switch FTDI Chipset	CG-4URS232M		1	4 Type-B Female USB			$49.95	Max: 10 Min: 1 Step: 1	Add to cart	Learn More
	2 Port USB 2.0 to RS 232 Auto Switch FTDI Chipset	CG-2URS232A		1	2 Type-B Female USB			$60.95	Max: 8 Min: 1 Step: 1	Add to cart	Learn More
	2 Port USB 2.0 to RS 232 Manual Switch FTDI Chipset	CG-2URS232M		1	2 Type-B Female USB			$38.95	Max: 10 Min: 1 Step: 1	Add to cart	Learn More
	USB C to Serial FTDI Adapter Black for Windows 10 Fully Supported!	USBG-232-C	921.6K bps	1	1 Type-C Male USB			$25.95	Max: Min: 1 Step: 1	Add to cart	Learn More

12