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PCIe to Dual Serial Port PCI-E to 2 Ports RS232 DB9 Expansion Card Adapter Converter Riser Card Chipset ASIX/AX99100
- Model #: DW-TXB074
- $14.99 –
- Free Shipping

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USB to Serial Adapter 10 ft USB to RS232 DB9 Female Cable COM Port with FTDI Chipset Supports Windows 11 10 8 7 Mac Linux
- Model #: VFR-2034
- $37.59 –
- Free Shipping

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USB2.0 to 8-Port RS232 Serial Converter, Industrial-Grade DB9 Serial Adapter Hub with FTDI Chip ±15kV ESD Protection for POS, ATM, Factory Automation
- Model #: 6908911144
- $258.42 –
- Free Shipping

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Aomoproing FOR Customized to COM port line Round 6 pin to DB9 hole serial line to RS232 cable
- Model #: l-99
- $50.52 –
- Free Shipping

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PCI Serial Port Card PCI To 2 Ports RS232 COM Converter Card
Limited time offer, ends 09/14
- Type: Controller Card
- Model #: CL-HD-Addon-116
- $32.07 –
- Free Shipping

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PCI-E 1 Parallel port 1 Serial card pcie to COM9 pin RS232 industrial control serial port expansion card AX99100 chip
Limited time offer, ends 08/30
- Model #: C6WV-0730-OYJ-591
- $25.51 –
- Free Shipping

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StarTech.com 4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485 Model PEX4S232485
- Type: PCI Express to Serial Port Card
- External Ports: 2 x RS232 2 x RS422 / RS485
- Operating Systems Supported: Windows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64), 2000 Windows Server 2008 R2, 2003(32/64) Linux Kernel 2.6.x
- Specifications: Data Bits: 5, 6, 7, 8 FIFO: 256 Bytes Flow Control: None, Xon/Xoff, RTS/CTS Max Baud Rate: 460.8 Kbps Parity: None, Odd, Even, Space, Mark Serial Protocol: RS-232/422/485 Stop Bits: 1, 1.5, 2 Supported Protocols: RS-232, RS-422, RS-485 2-wire / 4-wire
- Model #: PEX4S232485
- $153.74
- $150.45 –
- More options from $150.45 - $163.78

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USB to 4-Port Independent RS-485/RS-232 Converter RS485 RS232 COM Serial Port Adapter Cable
- Model #: DEEUB0GCHXMCQQ
- $272.99 –
- Free Shipping

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DB9 RS232 Male to RJ45 Female Serial Extender Adapter Card, Serial Port Over CAT5/CAT6 LAN Ethernet Cable
Limited time offer, ends 08/31
- Model #: C24W-X8365
- $20.49 –
- Free Shipping

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FOR MiniPCIE Two Series and One Parallel RS232 Serial Port COM Port LPT Printer DB9 Pin DB25 Pin Expansion Card WCH
- Model #: YQC-T7554
- $87.16 –
- More options from $87.16 - $88.66
- Free Shipping

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StarTech.com ICUSB2321F USB to Serial Adapter - 1 port - USB Powered - FTDI USB UART Chip - DB9 (9-pin) - USB to RS232 Adapter
- Type: Data Transfer Cable
- Type: Cable Connectors
- Color: Black
- Connector Number: 2
- Model #: ICUSB2321F

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PCIe to Single Serial Port DB9 RS232 PCI-E x1 Serial Card Expansion Adapter Converter Chipset ASIX AX99100 for Desktop Computer
- Model #: DW-TXB073
- $13.99 –
- Free Shipping

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USB to DB9 RS232 Serial Adapter 9 Pin Male to COM Port Chip Computer PC Converter Cable Support Win10/8/7/M/Vista
- Model #: CLAWB0CS691QS3
- $97.99 –
- Free Shipping

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StarTech Serial Parallel Combo Card with Dual Serial RS232 Ports (DB9) & 1x Parallel Port (DB25), PCI Adapter Expansion Card
- Type: Parallel Combo Card
- Package Contents: 2S1P PCI Serial Parallel Combo Card with 16C550 UART 1 x Full-Profile Bracket 2 x Low-Profile Brackets (for Serial Ports) 1 x Low-Profile Bracket (for Parallel Port) 1 x Quick-Start Guide
- Model #: PCI2S1P2
- $39.99 –
- More options from $35.00 - $44.14
- Free Shipping

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FT232H USB TO GPIO/SPI/I2C Industries LLC interface, usb 2.0 to parallel port and serial port high speed (480mbps)
- Model #: tpr1tpr-637
- $25.98 –
- Free Shipping

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StarTech.com PEX4S953LP 4-Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-byte FIFO Cache - ASIX AX99100 - Low Profile Bracket - Replacement for PEX4S952LP (PEX4S953LP)
- Type: PCI Express to Serial Port Card
- External Ports: 4 - DB-9 (9 pin, D-Sub) Male
- Internal Ports: 1 - LP4 (4 pin; Large Drive Power) Male Input
- Operating Systems Supported: Windows 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.4.x to 2.6.x LTS Versions only
- Model #: PEX4S953LP
- $109.99
- $103.99 –
- Save: $6.00 (5%)
- More options from $103.99 - $121.68
- $7.51 Shipping

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USB to -485 Serial Port Converter 2 Serial Ports CDEBYTE E810-U21CS USB-C Interface Rate Industrial Grade
- Model #: Fuqik-1289
- $31.51 –
- Free Shipping

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PCI-E Serial Port Card PCIe to 4/2 Port RS232, Industrial 4/2 x 9-Pin COM Expansion Card, ASIX AX99100 Two wires
Limited time offer, ends 08/30
- Model #: C7FW0626-JIA-82
- $23.98 –
- Free Shipping

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10 Pack White DB9 Male RS232 Breakout Board with Housing, Solder-Free D-SUB 9Pin Serial Port to Terminal Block Wiring Adapter Module
Limited time offer, ends 08/23
- Model #: ZP0806ZP.20261062
- $47.68 –
- Free Shipping

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Vszerda New USB 2.0 to RS232 COM Port 9 Pin Serial DB25 DB9 Adapter Cable Converter
- Model #: C745-Lsy715-959
- $34.59 –
- Free Shipping

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C104P ISA COM card with RS232 4*Port 4*RS-232 serial port card suitable for 486 586 motherboard ISA slot industrial motherboard
- Model #: WDF-F6792
- $98.04 –
- Free Shipping

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PS2 Serial Port Card Low-Profile Adapter Card for 400, 600, 800 G3, COM Serial Port 910324-001, 910110-002, 910110-001
Limited time offer, ends 08/23
- Model #: C745-LUOYIMAN-Lsy729-013
- $69.99 –
- Free Shipping

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CH341T 2-in-1 module USB to I2C IIC UART USB to serial port TTL serial port downloader
- Model #: IO6OI-15
- $16.62 –
- Free Shipping

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PCIe Serial and Parallel Port Card Desktop PCI-E 1 and 2 Serial Port Card Built-in 2S1P COM Serial Parallel Port Card
Limited time offer, ends 08/31
- Model #: WLC78S.0729.Pallet1339
- $25.28 –
- Free Shipping

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Aomoproing FOR Network RJ45 to RS232 COM Port Serial DB9 Female Router Console Cable Adapter For
- Model #: L-1745
- $14.69 –
- Free Shipping

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5 Pack Serial Port 9 Pin Null Modem Adapter DB9 FemaleFemale RS232
- Model #: JrSDq-B01BZ31HHK
- $24.88 –
- Free Shipping

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4 Port USB to RS232 Serial Adapter w/Optical Isolation, Surge Protection, 2500Vrms Isolation, Bus Powered, High Speed Serial Communication for Industrial Use
- Model #: CLAWB004FFCANQ
- $504.99 –
- Free Shipping

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Ethernet RS422 RS485 RS232 Ethernet 4 Channel Serial Port Server E810-DTU(4RS1E) Processor Modbus RTU UDP TCP Data Transceiver
- Model #: TOLKB0GX3JPYH9
- $264.99 –
- Free Shipping

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PCIe Serial and Parallel Port Card Desktop PCI-E 1 and 2 Serial Port Card Built-in 2S1P COM Serial Parallel Port Card
Limited time offer, ends 08/29
- Model #: C72J-Y-1819-2IN1
- $25.28 –
- More options from $25.28
- Free Shipping

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SYBA SY-PEX15019 RS-232 Serial 8-Port PCI-Express Card
- Type: PCI Express to Serial Port Card
- External Ports: 8 x Serial Ports
- Data Transfer Rate: Serial Port: Up to 1 Mbps
- Operating Systems Supported: Windows 2000, 2003 Server, XP 32/64-bit, Vista 32/64-bit
- Model #: SY-PEX15019
- $59.19 –
- More options from $59.19 - $84.20
- Free Shipping

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PCIe Serial and Parallel Port Card Desktop PCI-E 1 and 2 Serial Port Card Built-in 2S1P COM Serial Parallel Port Card
Limited time offer, ends 08/30
- Model #: C7FW0629-JIA-773
- $25.27 –
- More options from $25.27
- Free Shipping




