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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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Gearmo 4 Port USB to Serial RS232 Adapter FTDI Chipset, Supports Win 10, 8, 7, XP, Linux, Mac w/ESD and Surge Protection

In Stock & ready to ship.
Connect 4 new or additional Windows COM ports through this FTDI, the USB to serial adapter outputs are automatically configured once connected to give you an easy plug-and-play installation.

OS Compatibility

Part# USA-FTDI4X
$39.98

Volume Pricing

Qty: 48+ $39.12
Qty: 144+ $37.92
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4 Port USB to RS485 High Speed Adapter w/12V DC Power Supply

Limited stock, 1 available.
The USB to RS-485 adapter installs automatically once connected to a USB port. When a serial device is connected to it, it will check for a fail signal indicated by a RED LED. With many application uses, this USB to RS-485 serial adapter is mountable and includes an attached USB cable.
Part# CG-UHS4P485
$141.99

Volume Pricing

Qty: 24+ $138.66
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4-port USB to RS232 Adapter FTDI FT4232H & ZyWyn

In Stock & ready to ship.
The CG-4X232FTDI is a 4 Port RS232 to USB 2.0 serial adapter cable that is designed for PC, thin client, or server to provide instant COM port expansion via the Universal Serial Bus (USB).
Part# USB-4X232FTDI
$69.95

Volume Pricing

Qty: 6+ $67.88
Qty: 24+ $64.55
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SerialGear USB to serial 4 Port DB-9 RS-232 Adapter with FTDI Chip

Limited stock, 9 available.
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.

OS Compatibility

Part# USBG-BAY4
$79.99

Volume Pricing

Qty: 6+ $77.88
Qty: 12+ $75.63
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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.

OS Compatibility

Part# CM-41042
$179.98

Volume Pricing

Qty: 6+ $172.12
Qty: 12+ $169.14
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Professional Quad Port USB to Serial DB-9 RS-232 Adapter

Limited stock, 7 available.
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

OS Compatibility

Part# USB2-4COM-M
$89.95

Volume Pricing

Qty: 12+ $87.25
Qty: 48+ $85.88
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USB 4-Port Serial Adapter / USB 2.0 Quad Port Serial DB-9 RS-232

In Stock & ready to ship.
Windows 10 mountable 4-port serial cable adapter helps expand to four DB-9 connections from an available USB host port. The USB to serial adapter uses the FTDI FT232RL Chips, Mutli TT USB 2.0 GL852 Chip and ZT213LFEA Zywyn Corporation to achieve its high speed output.

OS Compatibility

Part# USBG-4X232P1
$97.99

Volume Pricing

Qty: 24+ $96.61
Qty: 114+ $96.12
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4-Port USB Serial Adapter Box with Prolific Chip 4-DB9 RS-232 Serial from One USB Cable Input

Limited stock, 1 available.
The USB-4X-RS232 USB to serial converter is designed for PC, thin client, or server to provide instant COM ports expansion via the Universal Serial Bus (USB).

OS Compatibility

Part# USBG-4X-RS232
$69.99

Volume Pricing

Qty: 6+ $67.88
Qty: 24+ $65.21
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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.

OS Compatibility

Part# USB-4COMi-M
$149.78

Volume Pricing

Qty: 12+ $145.66
Qty: 24+ $139.99
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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, 5 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.

OS Compatibility

Part# USB2-4COM-SI-M
$199.89

Volume Pricing

Qty: 3+ $197.88
Qty: 12+ $195.79
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USB-4COMi-SI-M USB to Quad RS-422/485 Metal case with DIN-Rail

Limited stock, 8 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.

OS Compatibility

Part# USB-4COMi-SI-M
$249.78

Volume Pricing

Qty: 12+ $242.66
Qty: 24+ $236.99
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USB 2 to Industrial 4-Port RS232-422-485 Serial TB Adapter

Limited stock, 3 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.

OS Compatibility

Part# USB2-4COMi-TB
$139.95

Volume Pricing

Qty: 6+ $136.84
Qty: 12+ $131.59
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USB 2.0 to 4-Port RS232-422-485 Serial TB Adapter Isolation | Surge

Limited stock, 7 available.
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.

OS Compatibility

Part# USB2-4COMi-SI-TB
$189.95

Volume Pricing

Qty: 12+ $177.66
Qty: 24+ $174.85
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10ft. USB 4 Port Serial Adapter USB 2.0 Quad Port Serial DB-9 RS-232

In Stock & ready to ship.
Professional Grade Solution for Legacy or Industrial serial RS-232 device connectivity to a Laptop or Desktop Computer. This Adapter Retains all COM port setting assigned by the operating system and or modified by user. this is very convenient if adapter is disconnected and reconnected.

OS Compatibility

Part# USBG-4X232P1-10
$99.99

Volume Pricing

Qty: 24+ $99.61
Qty: 144+ $96.12
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USB 4 Port Serial DB-9 RS-232 Adapters with Prolific Chipset

Limited stock, please call or email for status.
USB to RS232 4 port serial adapter with Prolific chip set is in full compliance with USB specifications rev. 1.1 and compatible with USB 2.0 ports. Plug & Play capability for outside peripherals with Windows operating systems.

OS Compatibility

Part# USBG-4X232
$74.98

Volume Pricing

Qty: 24+ $69.60
Qty: 48+ $68.98
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4-Port 4-Port USB DB-9 Serial Adapter Solution for Windows operating systems

Limited stock, please call or email for status.
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.

OS Compatibility

Part# USB-4COM
$88.95

Volume Pricing

Qty: 6+ $86.12
Qty: 24+ $82.14
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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.

OS Compatibility

Part# GM-U24RS232
$79.99

Volume Pricing

Qty: 12+ $67.55
Qty: 48+ $54.11
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6ft. USB 4-Port Serial Adapter / USB 2.0 Quad Port Serial DB-9 RS-232

In Stock & ready to ship.
The USB 2.0 Quad Serial Adapter is bus-powered, and it works with the USB host port supplying power of 500mA. The USB2.0 Quad Serial Adapter provides instant connectivity with modems, ISDN TAs, PDAs, handheld & pocket PCs, digital cameras, POS, serial printers.

OS Compatibility

Part# USBG-4X232P1-6
$99.99

Volume Pricing

Qty: 24+ $98.61
Qty: 144+ $96.12
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Industrial 4-Port RS-232 USB-to-Serial Adapter, Compact Metal Case with 1m Octopus Cable, DIN rail

Limited stock, 3 available.
4-Port RS-232 USB to serial adapter adds four industrial RS-232 serial ports by connecting to a USB host port and can be mounted to a Din rail conveniently for stable connections. it is compliant with USB 1.1/2.0 compatible Speed 480 Mbps, hi-speed USB and supports FIFO 128 byte transmit FIFO 384 receive FIFO.

OS Compatibility

Part# USB2-4COM-M-CBL
$87.91

Volume Pricing

Please see product details to view volume discounts.
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FTDI Chip with TX/RX LED USB 4 Port Serial DB-9 RS-232 Adapters for Vista and More

In Stock & ready to ship.
USB 4 port serial DB-9 RS-232 adapter with FTDI chip with TX and RX LED. Full compliance with USB Spec Rev 1.1. and compatible with USB 2.0 Ports.

OS Compatibility

Part# USBG-4X232FTDI
$77.98

Volume Pricing

Qty: 24+ $75.60
Qty: 48+ $74.98
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4 Port USB to Serial Adapter RS-232 with FTDI Chip for VIsta and XP

Limited stock, please call or email for status.
Utilizing the FT232BL FTDI chip this USB to serial adapter supports 4 DB-9 Male ports with hex nut screw lock mechanism from your computer's USB 2.0 host port. The USBG-4FTDI adapter is ideal for sytems without COM ports built in as with newer systems. Supported by Windows 10, 8, 7, and earlier versions.

OS Compatibility

Part# USBG-4FTDI
$59.89

Volume Pricing

Qty: 6+ $57.89
Qty: 12+ $56.98