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

Quick View
PCIE 1x to 4-Port RS232 Serial Port Card Adapter 2-Port 4-Port Expansion Card Desktop Purpose COM Card(2 Port)
- Model #: TOLDB0F44FVP2K
- $89.99 –
- Free Shipping

Quick View
PCIE 1x to 4-port 2-port RS232 serial card, 2-port 4-port expansion card, desktop computer universal COM card
Limited time offer, ends 08/15
- Model #: C738-WXY-80500033
- $38.79 –
- Free Shipping

Quick View
MM-PCI16C1058-8S PCI to 8-Port RS232 Serial Adapter Card 926.1Kbps Desktop COM Port with 1 to 8 DB9 Serial Cable Support PCIIRQ Sharing
- Model #: TOLDB0FHKZ9JCZ
- $100.99 –
- 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 08/15
- Model #: DW-TXI038
- $45.99 –
- Free Shipping

Quick View
Dual Serial Port RS232 RS485 CPE Outdoor High-Speed Internet Access Card Dual Network Port 5G Industrial Router x 1 Set (Global Version + Sucker Antennas)
- Model #: CHIYB0D845CDPG
- $790.99 –
- Free Shipping

Quick View
PCI-E 1 Parallel port 2 Serial card pcie to COM9 pin RS232 industrial control serial port expansion card AX99100 chip
- Model #: C6WV-0730-OYJ-577
- $48.61 –
- Free Shipping

Quick View
RS232/RS485 To Network Port Module Dual Serial Port ETH RJ45 Industrial Grade Two-Way Transparent Transmission EU Plug-AB01
- Model #: C6WV-0731-OYJ-700
- $68.51 –
- Free Shipping

Quick View
Socket Comm D-I/O Ruggedized Dual Serial Port PC Card PCMCIA
- Model #: TOLDB00006B6QG
- $290.99 –
- Free Shipping

Quick View
IO CREST 8 Port Serial DB9 RS-232 PCI Controller Card RDC C6238 Chipset SI-PCI15068
- Model #: TOLDB08FSDGK57
- $72.99 –
- Free Shipping

Quick View
4-Port RS-232 Serial PCI-E (w/Both Regular & LP Brackets) (SER6456A+L)
- Model #: TOLDB00IIZ2ZMU
- $216.99 –
- Free Shipping

Quick View
StarTech.com 2-Port USB-C Hub with Gb Ethernet and RS232 FTDI Serial, Attached USB-C to USB-A Dongle, 100W PD Pass-Through, 2x USB-A 5Gbps
- Part Number: 5G2A1SGBB-USB-C-HUB
- Network Media: Data Transfer Rate: 640 MB/s
- Uplink Ports: USB Version: 3.2 Gen 1 Total Number of USB Ports: 3 Number of Network (RJ-45) Ports: 1 USB Connector Type: Type-C Type-A
- Uplink Interface: Host Interface: USB 3.2 (Gen 1) Type C USB 3.2 (Gen 1) Type A
- Model #: 5G2A1SGBB-USB-C-HUB
- $81.99 –
- More options from $81.99 - $99.06
- Free Shipping

Quick View
2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE RS232 Card, PCIE Serial DB9 Port Card (PCIE-SE2)
- Brand: HP
- Part Number: PCIE-SE2
- Connectors: 1 x RJ45
- Interface: PCI
- Model #: 141931474414
- $53.99 –
- Free Shipping

Quick View
Conceptronic 4 Port DB9-RS232 Serial PCIe Card
- Model #: TOLDB0D96KXT8D
- $194.99 –
- Free Shipping

Quick View
Syba SY-PEX15019 PCI-Express RS-232 Serial 8-Port Card with OXPCIe958 Chipset
- Model #: TOLDB003BYRO8S
- $109.99 –
- Free Shipping

Quick View
USR-K7 Low Cost TTL UART to Ethernet Module 10/100Mbps Super Port Ethernet to Serial Module Support Modbus RTU to Modbus TCP with RJ45 Port (10PCS)
Limited time offer, ends 08/30
- Model #: 69048980466
- $188.99 –
- Free Shipping

Quick View
Syba 2 Port DB9 RS-422/485 Serial PCI-Express 2.0 x1 Card (SI-PEX15043)
- Model #: TOLDB00TWFIM5E
- $99.99 –
- Free Shipping

Quick View
RS232 Serial Port Interface Card Compatible with TM-U210 M188B TM-L90 TM-U325 TM-T88V M129C TM-U220PD TM-U220PA TM-U288B M111A
- Model #: TOLDB0GCD1GW3C
- $83.99 –
- Free Shipping

Quick View
8 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15071
- Model #: TOLDB0FMLH12XL
- $108.99 –
- Free Shipping

Quick View
8 Serial Port DB9 RS232 PCIe Riser Card PCI-Express X1 Expansion Card Adapter High Speed 920KB with Heat Sink Chip ASIX AX9900
Limited time offer, ends 08/15
- Model #: C75J*OYJ*G1*0717-136
- $62.96 –
- Free Shipping

Quick View
RS232 Serial Port Interface Card Compatible with TM-U210 M188B TM-L90 TM-U325 TM-T88V M129C TM-U220PD TM-U220PA TM-U288B M111A Printers and Devices
- Model #: TOLDB0FFSBHVS9
- $84.99 –
- Free Shipping

Quick View
IDM-7842 Modbus Gateway 2 Channel Optical Isolation RS485/232 Serial Port 5 Port Ethernet Switch modbus
- Model #: CLOLB0H4HJZBWN
- $442.99 –
- Free Shipping

Quick View
IO CREST 4 Port RS-232 Serial PCIe 2.0 X1 Controller Card Components SI-PEX15042
- Model #: TOLDB00Q1EUDE2
- $103.99 –
- Free Shipping

Quick View
IO CREST 6 Port RS-232 DB9 Serial PCI-Express 2.0 x1 Card SI-PEX15040
Limited time offer, ends 08/15
- Model #: C7FK-OYS-2026.7.28-744
- $97.99 –
- Free Shipping

Quick View
IO CREST 6 Port RS-232 DB9 Serial PCI-Express 2.0 x1 Card SI-PEX15040
Limited time offer, ends 08/15
- Model #: C7FK-OYS-2026.7.28-53
- $97.99 –
- Free Shipping

Quick View
LINDY 2 Port RS-232 Serial and 1 Port Parallel Card PCI Express (51188)
- Model #: TOLDB0028O3Z9Y
- $119.99 –
- Free Shipping

Quick View
Inline PCIe Serial Card, 4 Port RS-232 Interface, D-Sub 9, CH384L, Low Profile Brackets, UART Interface, High Data Rate, 76619E
- Model #: TOLDB0GLG76G29
- $72.99 –
- Free Shipping

Quick View
PCIE-E to RS-232 serial port expansion card COM port desktop computer host adapter card 9-pin DB9 industrial control
Limited time offer, ends 08/31
- Model #: C73X-L616-41
- $59.30 –
- More options from $59.30 - $61.30
- Free Shipping

Quick View
AEE7-PCI-E to Dual Serial Port RS232 PCI PICie Adapter Card 2.5Gb/s Channel 1000Kbps CH382L Chip
- Model #: TOLDB0GPQBNQP1
- $99.99 –
- Free Shipping

Quick View
Powerful Performance 5 Network Ports Industrial Serial Port 232/485 Dual SIM Card 4G Industrial Router AR550 PoE Power Supply, PLC Remote Control
- Model #: CHIYB0D8PPKLKN
- $392.99 –
- Free Shipping

Quick View
4-port RS-232 PCI Express Serial Low Profile Board with Power Output (SATA Power Socket)
- Model #: TOLDB00PVA84DO
- $148.99 –
- Free Shipping

Quick View
1Pc BS101P FT232RL Module USB Serial Port UART 1.8v 2.5v 3.3v 5v 4in1 Module Board
- Model #: BS101P FT232RL
- $92.09 –
- More options from $92.09
- Free Shipping

Quick View
PCI to 8x Serial Port RS232 DB9 COM Expansion Card I/O Controller Riser Adapter Chipset Systembase 16C1058 with Output Cable
Limited time offer, ends 08/15
- Model #: C75J*OYJ*G1*0717-169
- $69.96 –
- Free Shipping

Quick View
Vszerda Dual Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE 2X DB9 Card
Limited time offer, ends 08/16
- Model #: C745-Lsy715-1888
- $31.99 –
- Free Shipping


