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
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-2026.7.28-552
- $97.99 –
- Free Shipping
Quick View
Syba 2 Port Serial DB9 RS232 PCI-e 1.0 x1 with Low Bracket SI-PEX15055
- Model #: TOLDB01LY3YUI9
- $82.99 –
- Free Shipping
Quick View
1PCS PCI to RS-232 Serial Card 2 Ports RS232 to PCI Converter DB9 COM Adapter UT-7702
- Model #: TOLDB0GWHFKNTJ
- $112.99 –
- Free Shipping
Quick View
HF2211 Serial Server RS232/485/422 to & Ethernet Converter, High Speed Network Communication with Data Transmission Support and Upgrade, DTU Networking 5-36VDC
- Model #: TOLDB0DF3Y5ZXT
- $77.99 –
- 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
Delock PCI Express Card to 2 x Serial RS-232 High Speed 921K with Power Supply
- Model #: TOLDB079Q2N25B
- $142.99 –
- Free Shipping
Quick View
2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SY-PEX15066
- Model #: TOLDB0FMLD3RJL
- $83.99 –
- 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 x1 Card with 8X RS-232, D-Sub 9, Serial Interface Card, Industrial, Multi-Card Operation, Stable Data Transmission, 76660Z
- Model #: TOLDB0GLGPPRWZ
- $277.99 –
- Free Shipping
Quick View
1PCS Industrial Grade PCI to RS232 Serial Card 2 Ports High Speed DR44 Expansion Converter for 2U PC Case UT-752E
- Model #: TOLDB0GWHJWJ6S
- $166.99 –
- Free Shipping
Quick View
PCIe to 4 Ports DB9 RS232 COM Serial Port I/O PCI-E X1 Riser Card Expansion Adapter Chipset ASIX/AX9900 for Desktop PC Computer
Limited time offer, ends 08/15
- Model #: C75J*OYJ*G1*0717-157
- $20.96 –
- Free Shipping
Quick View
Quantum PCIe Dual Serial Card ASIX AX99100 Chip 2x RS232 DB9 Ports 25Mbps Industrial Adapter for Windows Linux Low Profile
Limited time offer, ends 08/30
- Model #: C10V-S49-7
- $28.99 –
- 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
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
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
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 08/15
- Model #: WLC78S.0807.Pallet0692
- $35.06 –
- Free Shipping
Quick View
5/10PCS Eport-E20 Network Server Port FreeRTOS TTL Serial to Ethernet Embedded Module DHCP 3.3V DHCP TCP IP Telnet Converter MCU (1pcs)
- Model #: C5Z9-TechMax Depot-Lsy813-1579
- $26.99 –
- Free Shipping
Quick View
4 Port RS-232 Serial PCIe 2.0 X1 Controller Card Components SI-PEX15042
- Model #: TOLDB0FMLPGZQ5
- $83.99 –
- 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
PCIe to 8 Port RS232 Serial Card PCIe to 8 Ports Serial RS232 Expansion Card Riser Card COM Controller 17V358
- Model #: TOLDB0DD3ZDGTX
- $116.99 –
- Free Shipping
Quick View
1PCS 2 Ports High Speed PCI-E PCI Express to RS-485 RS-422 Converter Serial Card DB9 RS485 RS422 Com Connector PCIE UT-792
- Model #: TOLDB0GWHL831M
- $236.99 –
- Free Shipping
Quick View
Card, 12Gb / s Data Transfer Rate 2GB PCI Express 3.0 with 4 Internal Serial ATA SAS Ports, for Desktops Servers Workstations
- Model #: TOLDB0G5THDND8
- $283.99 –
- 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
PCIe to 2 Serial Port RS232 DB9 PCI-E PCI Express 1x Adapter Riser Card Support RS232, RS485 & RS422 Modes Chipset ASIX/AX9900
Limited time offer, ends 08/15
- Model #: DW-TXB068
- $17.40 –
- More options from $17.40 - $18.45
- Free Shipping
Quick View
2Port Serial DB9 RS232 PCIe 1.0 x1 Network Adapter with LowProfile Bracket, Model SIPEX15055
- Model #: B3EN-S32
- $46.99 –
- Free Shipping