Your Browsing History
- In Stock
- Sold by Newegg
- Make an Offer
- New
Any questions? Our AI beta will help you find out quickly.
Try me now

Quick View
StarTech.com PEX1S953LP 1 Port RS232 Serial Adapter Card with 16950 UART - PCI Express Serial Port Card - 921.4Kbps - Windows & Linux Compatible
- Type: PCI Express to Serial Port Card
- External Ports: 1 x DB-9 (9 pin, D-Sub) Male
- Internal Ports: 1 x LP4 (4 pin; Large Drive Power) Male Input 1 x PCI Express x1 Male
- Operating Systems Supported: Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.4.x to 2.6.x LTS Versions only
- Model #: PEX1S953LP
- $50.99 –
- More options from $50.99 - $55.85
- Free Shipping

Quick View
SYBA PCI-Express 1-Port DB9 RS232 Serial Card with Low Profile Bracket - RoHS Model SD-PEX15021
- Type: PCI Express to Serial Port Card
- External Ports: 1 x Serial Port
- Operating Systems Supported: Windows 2000, XP 32/64-bit, Server 2003 32/64-bit, Vista 32/64-bit, Server 2008 32/64-bit
- Weight: 1
- Model #: SD-PEX15021
- $17.99 –
- Free Shipping

Quick View
StarTech.com 2-Port Serial to Ethernet Adapter - IP Serial Device Server For Remote RS232 Devices - Wall/DIN Rail Mount - LAN To DB9 Converter I23-SERIAL-ETHERNET
- Brand: StarTech.com
- Type: Computer Accessories
- Model #: I23-SERIAL-ETHERNET
- $254.99 –
- More options from $254.99 - $289.21
- Free Shipping

Quick View
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
- $37.99 –
- More options from $35.00 - $44.14
- Free Shipping

Quick View
StarTech.com PEX1S1P950 PCIe Card with Serial and Parallel Port - PCI Express Combo Adapter Card with 1x DB25 Parallel Port & 1x RS232 Serial Port - Expansion/Controller Card - PCIe Printer Card
- Type: PCIe Card with Serial and Parallel Port
- External Ports: DB-25 (25 pin, D-Sub) DB-9 (9 pin, D-Sub)
- Standard: PCI Express x1
- Model #: PEX1S1P950
- $64.99
- $46.99 –
- Save: $18.00 (27%)
- More options from $46.99 - $63.64
- $7.02 Shipping

Quick View
USB to Serial Adapter Cable RS232 DB9 Male Port with FTDI FT232RL Chipset Supports Windows 11 10 8 7 and Mac Linux (1.5 Feet)
- Brand: METRA
- Color: Blue
- Length: < 1"
- Connector Number: 9
- Model #: 404367735399
- $31.99 –
- Free Shipping

Quick View
USB to RS232 Serial Port 9 Pin DB9 Cable Serial COM Port Adapter Convertor With Female Adapter Supports for Windows 8 No CD
- Model #: AAA-95
- $11.75 –
- Free Shipping

Quick View
DB9 RS232 Male to RJ45 Female Serial Extender Adapter Card, Serial Port Over CAT5/CAT6 LAN Ethernet Cable
- Model #: C24W-X8365
- $22.29 –
- Free Shipping

Quick View
StarTech PEX16S550LP PCI Express Serial Card - 16 Port Low-Profile Serial Card - High-Speed PCIe Serial Adapter - Serial Controller DB9 RS232
- Type: PCI Express
- External Ports: 16 x DB-9 (9 pin, D-Sub) Male
- Internal Ports: 1 x SP4 (4 pin, Small Drive Power) Male
- Operating Systems Supported: Windows 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Linux 2.6x to 4.2x LTS Versions only
- Model #: PEX16S550LP
- $421.99 –
- Free Shipping

Quick View
USB Type C to RS232 DB9 Serial Port Adapter Cable, FTDI Chipset, Supports Windows 11, 10, 8, 7 and Mac Linux
- Brand: OIKWAN
- Type: USB
- Color: Black
- Connector Detail: Usb 2.0 Type C to Db9
- Model #: 140018744765
- $29.99 –
- Free Shipping

Quick View
Industrial grade Port-powered serial interface converter from RS232 to RS485 with 600w Surging protection 232 to 485,485 to 232
- Model #: .jiudian-YC5KU-0860
- $17.68 –
- Free Shipping

Quick View
Ethernet Network Serial Port Converter RJ45 to RS232 RS485 RS422 Industrial Device Server Support TCP/RTU/UDP with Power Cable
Limited time offer, ends 08/01
- Model #: C7FW0627-135
- $47.95 –
- Free Shipping

Quick View
Serial Port Module Isolated Converter, 6-in-1 USB RS-232 RS-485 422 TTL Adapter, Plug and Play for Industrial and Electronic Applications
- Model #: TOLKB0G3BYRNHT
- $59.99 –
- Free Shipping

Quick View
Mini PCI-E to Dual RJ45 Gigabit + COM Serial Port Combo Card, 2-Port 10/100/1000Mbps LAN RS232 Adapter for Industrial PC & Embedded Motherboard
- Model #: B3EN-S2994
- $32.49 –
- Free Shipping

Quick View
RS232 Serial Port & DB25 Printer Parallel Port to PCI-E Card Adapter Converter
- Model #: IW-ADD-convert-84
- $35.99 –
- Free Shipping

Quick View
RS232/485 to WiFi and Ethernet Converter with POE, Serial Server, Modbus Gateway, MQTT Gateway, Serial Port to HTTPD Client
- Model #: LC6W1J30-435
- $105.99 –
- Free Shipping

Quick View
waveshare RS232/485 to WiFi and Ethernet Converter Serial Server, Modbus Gateway, MQTT Gateway,Serial Port to HTTPD Client, Allow Serial Port to WiFi, Serial Port to Ethernet, Ethernet to WiFi
Limited time offer, ends 08/01
- Model #: 910942776270
- $60.99 –
- More options from $60.99 - $64.08
- Free Shipping

Quick View
USB to RS232 Serial Port 9 Pin DB9 Cable Serial COM Port Adapter Convertor With Female Adapter Supports for Windows 8 No CD
- Model #: 9SIC2ZPKM03829
- $11.78 –
- Free Shipping

Quick View
FOR Serial Port to Ethernet Transparent Transmission Module ATK-UART2ETH Serial Server Network Port
Limited time offer, ends 07/27
- Model #: C5YJ-S527-1846
- $43.98 –
- Free Shipping

Quick View
StarTech.com ICUSB2322F USB to Serial Adapter - 2 Port - COM Port Retention - FTDI - USB to RS232 Adapter Cable - USB to Serial Converter
- Type: Data Transfer Cable
- Type: Others
- Color: Black
- Connector Number: 3
- Model #: ICUSB2322F
- $76.87 –
- More options from $76.31

Quick View
FOR Serial Port to Ethernet Transparent Transmission Module ATK-UART2ETH Serial Server Network Port
Limited time offer, ends 07/27
- Model #: C5YJ-S527-1847
- $43.98 –
- Free Shipping

Quick View
8-Port Serial to Ethernet Converter RS232 RS485 RS422 TCP/IP Device Server Modbus RTU to TCP Gateway
- Model #: C24W-X8953
- $186.29 –
- Free Shipping

Quick View
USB to 4-Port Independent RS-485/RS-232 Converter RS485 RS232 COM Serial Port Adapter Cable
- Model #: TOLKB0FCCJ882R
- $239.99 –
- Free Shipping

Quick View
USB2.0 to RS232 RS485 RS-485 RS422 RS-422 DB9 COM Serial Port Converter Adapter Cable FTDI chipset 1.8M (RS232/RS422/RS485)
- Model #: 20260720ZP7178C5JS
- $93.30 –
- Free Shipping

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

Quick View
Aomoproing FOR USB to RS232 Serial Port Adapter Connector 9-Pin DB9 Serial COM Port Adapter Converter Cable
- Model #: xy-645
- $11.01 –
- Free Shipping

Quick View
Vszerda FOR Serial Port to Ethernet Transparent Transmission Module ATK-UART2ETH Serial Server Network Port
Limited time offer, ends 08/18
- Model #: H4F8R9S
- $41.99 –
- Free Shipping

Quick View
Aomoproing USB2.0 to RS232 RS485 RS-485 RS422 RS-422 DB9 COM Serial Port Converter Adapter Cable FTDI chipset 1.8M (RS232/RS422/RS485)
- Model #: zo-1143
- $70.64 –
- Free Shipping

Quick View
FOR PCI to 2 port Serial ports controller card DB9 RS-232 9865 PCI Serial card MCS9865 chipset pci to 2 rs232 adapter Win10
Limited time offer, ends 08/01
- Model #: C7FW0720-OYJ-199
- $34.76 –
- Free Shipping

Quick View
Serial Adapter 4 port RS232 Serial DB9 COM to USB 2.0 Adapter Card Universal Serial Bus Industrial grade for POS system
- Model #: NVO3JRSW-289
- $33.00 –
- Free Shipping

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

Quick View
USB to RS232 Serial Port 9 Pin DB9 Cable Serial COM Port Adapter Convertor With Female Adapter Supports for Windows 8 No CD
- Model #: 9SIC2ZPKM03833
- $16.78 –
- Free Shipping

Quick View
USB to RS232 Serial Port 9 Pin DB9 Cable Serial COM Port Adapter Convertor With Female Adapter Supports for Windows 8 No CD
- Model #: 9SIC2ZPKM03837
- $16.78 –
- Free Shipping

