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4x Serial USB

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8 Port USB to Serial DB9 Industrial RS232 Adapter 15KV ESD and Surge

In Stock & ready to ship.
Rugged 8 port USB to serial RS232 adapter with DB-9 male connecting ports with 15KV ESD and 600W surge protection across all ports. Includes power adapter!
Part# GM-U28RS232
$99.99
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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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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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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
$43.88
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USB 2 to Industrial 4-Port RS232-422-485 Serial TB Adapter

Limited stock, 6 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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4-Port DB-9 Male Isolated USB to RS422 RS485 Serial Adapter

4-Port RS232 / RS422 / RS485 Isolated Adapter, The CM-422485-i4 Isolated USB to 4-Port serial interface adapter features 2.5kV isolation to ensure 4 serial devices by DB-9 port connected.
Part# CM-422485-i4
$199.99
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3-Port USB to RS232 Industrially Isolated DB9 Male Adapter

Limited stock, please call or email for status.
Serial RS232 Port Isolation, The CM-3RS232i Industrially Isolated USB to 3-Port RS232 adapter features 2.5kV isolation to ensure up to 3 serial devices connected by DB-9 ports.
Part# CM-3RS232i
$119.99
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USB 2.0 4 Port Serial DB-9 RS-232 Adapters with FTDI Chipset

In Stock & ready to ship.
USB to four port serial adapter with DB9 male connectors and screw locking mechanisms. Is compliant with USB1.1 and 2.0 EIA/TIA RS232 specifications.
Part# USBG-4X2FTDI
$44.98
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FTDI CHIP USB 2-Port Serial Adapter 6ft. / USB 2.0 Dual Port Serial DB-9 RS-232

In Stock & ready to ship.
6ft. USB 2 port FTDI serial adapter cable for RS-232 communication, allows 2 serial devices to be connected to a single USB port. It provides a simple way to add serial ports to any Laptop or Desktop.
Part# USBG-2X232P1-6
$76.95
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FTDI CHIP USB 2-Port Serial Adapter 10ft. / USB 2.0 Dual Port Serial DB-9 RS-232

In Stock & ready to ship.
10ft. USB to Serial dual port adapter with FTDI chip supports Windows 7 32 and 64-Bit, it allows 2 serial devices to be connected to a single USB port.
Part# USBG-2X232P1-10
$78.95
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4 Port USB to Serial Adapter RS-232 with FTDI Chip for VIsta / 7 / 10

Limited stock, please call or email for status.
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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FTDI CHIP USB 2-Port Serial Adapter / USB 2.0 Dual Port Serial DB-9 RS-232

In Stock & ready to ship.
3ft. USB to serial cable version with FTDI Chip supporting Windows 7 and Vista 64-Bit and Vista 32Bit Operating system compatible ships with Microsoft certified drivers. This adapter is the easiest way to add a serial port to your computer.
Part# USBG-2X232P1
$74.95
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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.
Part# USBG-4FTDI
$59.89
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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.
Part# USBG-4X232P1-10
$99.99
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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.
Part# USBG-4X232P1-6
$99.99
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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.
Part# USBG-4X232P1
$97.99
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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.
Part# USBG-4X232FTDI
$77.98
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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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Part# USB2-4COM-M
$89.91
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4-Port 4-Port USB DB-9 Serial Adapter Solution for Windows operating systems

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
$91.99
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USB 8 Port Serial DB-9 RS-232 Adapter Box with Prolific Chipset

Limited stock, 8 available.
The RS-232 serial ports function as native Windows COM ports, and are compatible with Windows serial communication applications. Each port is individually configurable. Normally Power solely from USB Bus, no external power supply needed.
Part# USBG-8X-RS232
$144.13
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USB 4 Port Serial DB-9 RS-232 Adapter Box with Prolific Chipset

Limited stock, 6 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 4 Port Serial DB-9 RS-232 Adapters with Prolific Chipset

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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.
Part# USBG-4X232
$74.98
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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
$85.12
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USB 2.0 4 Port Serial DB-9 RS-232 Adapters with Prolific Chipset

In Stock & ready to ship.
USB 2.0 4 port serial DB-9 RS-232 adapters with Prolific Chipset Full compliance with USB Spec Rev 1.1. and compatible with USB 2.0 Ports. Plug & Play capability for outside peripherals.
Part# USBG-4X232X2
$74.98