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4x Serial USB

USB to Serial Devices with 4 DB9 or Terminal Blocks to interface with your RS232, RS422 or RS485 devices. Offering many styles from Consumer, Professional and industrial solutions depending on your requirements. Providing a variety of mounting styles Desktop, Din Rail and Surface mountable.

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USB to RS232 4 Port Profesional Serial Adapter with LED

In Stock & ready to ship.
USB to Serial 4 port adapter Windows 10 supported, this professional 4 port RS232 to USB FTDI chip adapter can easily add 4 standard serial COM ports to your computer system or mobile device.
Part# GM-FTDI4X
$39.99
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SerialGear USB to serial 4 Port DB-9 RS-232 Adapter with FTDI Chip

In Stock & ready to ship.
USB bay docking USBG-BAY4 serial adapter box supports Windows 7 and Vista (32 and 64-Bit) RS232 Port X 4 feature a rugged metal enclosure! Multiple modules can be added to a single USB interface allowing you to add RS232 connectivity as needed.
Part# USBG-BAY4
$79.99
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4-Port DB-9 RS232 to USB Adapter with Isolation and Surge Protection

In Stock & ready to ship.
4-x port RS232 to USB adapter with isolation and surge protection each serial ports offer data transfer rate up to 920 Kbps for high system performance. Users are able to connect multiple serial devices through one USB port on their system.
Part# CM-41042
$179.98
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Professional Quad Port USB to Serial DB-9 RS-232 Adapter

In Stock & ready to ship.
USB 2.0 quad port serial DB-9 RS-232 adapter box is designed to make serial port expansion quick and simple. It instantly adds four RS-232 serial communication ports to your system with no conflicts with FTDI Chipset
Part# USB2-4COM-M
$89.99
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4 Port USB to Serial Adapter RS-232 with FTDI Chip for VIsta / 7 / 10

In Stock & ready to ship.
Attractive gloss black FTDI 4-port serial adapter, use in systems that have no COM port from new manufacture of laptop or PC's. Adds 4 DB-9 serial ports from a USB connection for applications such as fire and security, vending machines, industrial control, power management and more. Works with Windows 10 and earlier, Mac, and Linux.
Part# USBG-4FTDI-B
$59.89
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USB 4 Port Serial DB-9 RS-232 Adapter Box with Prolific Chipset

Limited stock, 4 available.
USB 4 port serial DB-9 RS-232 adapter box with Prolific chipset is in full compliance with USB Spec Rev 1.1. Plug & Play capability for outside peripherals.
Part# USBG-4X-RS232
$69.98
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USB-4COMi-M USB to Quad RS-422/485 Metal case with DIN-Rail

In Stock & ready to ship.
USB-4COMi-M USB to Quad RS-422/485 Serial Adapter for Windows 10, 8, 7 and Server 2003/2008 is housed in a metal chassis to protect the item. External dip switches to easily configure the item.
Part# USB-4COMi-M
$149.78
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USB2-4COM-SI-M - 4-Port RS-232 USB-to-Serial Adapter, with Optical-isolation and Surge Protection, Metal Case Protection, Metal Case

Limited stock, 2 available.
Optical isolation and surge protection are available on serial port and is individually optically isolated with 2000 volt DC optical isolation on 8 signal pins, GND is isolated by 5V DC-to-DC converter. The optical isolation protects your computer from spikes and surges.
Part# USB2-4COM-SI-M
$199.89
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USB-4COMi-SI-M USB to Quad RS-422/485 Metal case with DIN-Rail

Limited stock, 2 available.
Optical isolated Quad RS-422/485 Serial Adapter is designed to make serial port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB Serial Adapter instantly adds four RS-422, or RS-485 serial communication ports to your system.
Part# USB-4COMi-SI-M
$249.78
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USB 2 to Industrial 4-Port RS232-422-485 Serial TB Adapter

Limited stock, 4 available.
4 optically isolated and surge protected terminal block ports, the USB2-4COMi-TB USB to quad port industrial serial adapter is designed to make RS-422 and RS-485 serial port expansion quick and easy.
Part# USB2-4COMi-TB
$139.95
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USB 2.0 to 4-Port RS232-422-485 Serial TB Adapter Isolation | Surge

Limited stock, please call or email for status.
4 optically isolated and surge protected terminal block ports, The USB2-4COMi-SI-TB is a USB 2 to 4-port industrial serial adapter that protects you device(s) with optical Isolation, 15KV ESD.
Part# USB2-4COMi-SI-TB
$189.95
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USB to serial 4-port RS232 FTDI adapter cable

In Stock & ready to ship.
The USB to serial CG-4X232FTDI is a 4 Port RS232 to USB 2.0 serial adapter that is designed for PC, thin client, or server to provide instant COM port expansion via the Universal Serial Bus (USB). Supports USB to RS232 serial applications for Point of Sale, Serial Printers, Scanners and more, works at PC, Thin Client, or Server level operations.
Part# CG-4X232FTDI
$89.95
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4-Port 4-Port USB DB-9 Serial Adapter Solution for Windows operating systems

Limited stock, 4 available.
provides instant connectivity with modems, ISDN TAs, PDS, handheld & pocket PCs, digital cameras, POS, serial printers, etc. It is suitable for remote access, retail and industrial applications, data collection and other applications requiring a high speed serial communications port.
Part# USB-4COM
$89.99
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4 Port USB to Serial DB9 Industrial RS232 Adapter 15KV ESD and Surge

In Stock & ready to ship.
Rugged 4 port USB to serial RS232 adapter with DB-9 male connecting ports protected with 15KV ESD and 600W surge protection across all ports. With both bracket and DIN Rail mounting options, hub placement is versatile.
Part# GM-U24RS232
$79.99
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4 Port USB to RS-232/422/485 Auto Setup Adapter Windows Linux Mac

Limited stock, 1 available.
4 Port RS232/422/485, software configurable VScom USB-4COM-PRO Transfer Speed up to 921.6kbps RS232, up to 3Mbps RS422/RS485 with Metal case and DIN-Rail mountable.
Part# USBG-4COM-PRO
$299.98