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 to 8-Port RS-485/422 Serial Port Card, 8-Channel COM Expansion Card with TVS, Lightning/Surge Protection & Terminal Blocks - Industrial Multi-Port Data Communication
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-837
- $127.99 –
- Free Shipping
Quick View
IO CREST 8 Port Serial DB9 RS-232 PCI Controller Card RDC C6238 Chipset SI-PCI15068
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-553
- $75.99 –
- Free Shipping
Quick View
PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-67
- $74.99 –
- Free Shipping
Quick View
PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-573
- $74.99 –
- Free Shipping
Quick View
IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15069
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-568
- $87.99 –
- Free Shipping
Quick View
Control Card ZH-E3L Network Port Serial Port U Disk Network Cluster Electronic LED Display E3L
- Model #: TOLDB0F8QCQQ5B
- $148.99 –
- Free Shipping
Quick View
Control Card ZH-E1L Network Port Serial Port U Disk Network Cluster Electronic LED Display E1L
- Model #: TOLDB0F8Q9WZ5Q
- $114.99 –
- Free Shipping
Quick View
PPHXF 0PPHXF New COM Serial Port Card w/Cable for Pro Micro QBM1250 QCM1250 | COM Serial Module, for Desktop
- Model #: TOLDB0GZNWVDJH
- $145.99 –
- More options from $145.99 - $153.99
- Free Shipping
Quick View
UOTEK Industrial PCI-E to 8-port RS-232 Serial Card PCIE to RS232 High Speed DR62 Converter Com DB9 Connector 4U UT-788 Support 256byte FIFO Driver and Built-in Hardware and Software
- Connectors: DR62
- Temperature: -40~85°C
- Model #: UT-788
Quick View
MOXA NPort 5110-T - 1 Port Serial Device Server, 10/100 Ethernet, RS232, DB9 Male, -40 to 75°C Operating Temperature- Without Power Adapter
- Model #: GODSB079G6TN2F
- $163.19 –
- More options from $156.11 - $164.99
- Free Shipping
Quick View
IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SY-PEX15066
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-559
- $87.99 –
- Free Shipping
Quick View
Syba SY-PEX15019 PCI-Express RS-232 Serial 8-Port Card with OXPCIe958 Chipset
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-556
- $97.99 –
- Free Shipping
Quick View
Syba SY-PEX15019 PCI-Express RS-232 Serial 8-Port Card with OXPCIe958 Chipset
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-55
- $97.99 –
- Free Shipping
Quick View
Syba 2 Port DB9 RS-422 / 485 Serial PCI-Express 2.0 x1 Card (SI-PEX15043)
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-46
- $97.99 –
- Free Shipping
Quick View
Syba SY-PEX15019 PCI-Express RS-232 Serial 8-Port Card with OXPCIe958 Chipset
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-746
- $97.99 –
- Free Shipping
Quick View
Syba 2 Port DB9 RS-422 / 485 Serial PCI-Express 2.0 x1 Card (SI-PEX15043)
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-550
- $97.99 –
- Free Shipping
Quick View
Syba 2 Port DB9 RS-422 / 485 Serial PCI-Express 2.0 x1 Card (SI-PEX15043)
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-737
- $97.99 –
- Free Shipping
Quick View
IO Crest 4 Port RS-232 Serial PCIe 2.0 X1 Controller Card Components SI-PEX15042
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-823
- $117.99 –
- Free Shipping
Quick View
UOTEK PCI-E to 2 Ports RS485 RS422 Serial Port Adapter High-Speed Serial Expansion Port ESD Protection Industrial UT-792
- Connectors: DB9 male x 2
- Temperature: -40~85°C
- Model #: UT-792
Quick View
UOTEK Industrial PCI to 4-Port RS232 High-Speed Serial Card with Optical Isolation RS232 Serial Expansion Card DB9 Connector Adapter UT-764I
- Connectors: 1 DR44 Female
- Temperature: -40~85°C
- Model #: UT-764I
Quick View
UOTEK Industrial PCIE to 4-Port RS485 RS422 Serial Card PCI-E to RS-485 RS-422 High Speed Converter Adapter DR44 Connector Optical Isolation 1.2Km Transmission Distance 4U UT-794I
- Connectors: DR44
- Temperature: -40~85°C
- Model #: UT-794I
Quick View
UOTEK Industrial Mini PCI-E to RS-232 Serial Card PCIE to RS232 4 Port High Speed Converter DB9 ESD Anti-lightning RTS/CTS XON/XOFF UT-7784B Support Win2000/XP/Vista/Win7/NT4.0/CE 4.2/5.0/6.0/Vxworks
- Connectors: 4 * 1.25T-9AB Sockets
- Temperature: -40~85°C
- Model #: UT-7784B
Quick View
UOTEK Industrial PCI-E to 8 Port RS-485 RS-422 High Speed Serial Card PCIE to RS485 RS422 8-Port Converter ESD Anti-lightning 4U DR62 Connector UT-798
- Connectors: DR62
- Temperature: -40~85°C
- Model #: UT-798
Quick View
UOTEK Industrial PCI to 2-Port RS232 High-speed Serial Card Port Wiring for 2U Chassis DR44 Female 32 Bit Universal PCI Connector Adapter with 600W Surge Protection UT-752E
- Connectors: 1 DR44 female
- Temperature: -40~85°C
- Model #: UT-752E
Quick View
UOTEK Industrial PCIE to 8 Port RS485 RS422 High Speed Serial Card Converter ESD Anti-lightning UT-798
- BUS: X1 2.5Gbps PCl Express
- Temperature: -40~85°C
- Model #: UT798
Quick View
StarTech.com USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle
- Weight: 0.3
- Package Contents: USB 2.0 to 10/100 Mbps Ethernet Network Adapter Dongle 1 x Driver CD 1 x Instruction Manual
- Parts: 2 Year
- Labor: 2 Year
- Model #: USB2100
- $29.99 –
- Free Shipping
Quick View
StarTech 1-Port 10Gbps PCIe Network Adapter Card, Network Card for PC/Server, PCIe Ethernet Card w/Jumbo Frame, NIC/LAN Interface Card
- Part Number: ST10GSPEXNB2
- Standards: IEEE 802.3an (10GBASE-T) IEEE 802.3bz (5GBASE-T) IEEE 802.3bz (2.5GBASE-T) IEEE 802.3ab (1000BASE-T ) IEEE 802.3u (100BASE-TX ) IEEE 802.3i (10BASE-TX) IEEE 802.1Q (VLAN) IEEE P802.3az (EEE) IEEE 1588 (PTP) PCI Express Version 3.0
- Connectors: 1 x RJ45
- Dimensions: Height: 0.8" Width: 4.2"
- Model #: ST10GSPEXNB2
- $182.99
- $172.99 –
- Save: $10.00 (5%)
- More options from $172.99 - $196.26
- Free Shipping
Quick View
Broadcom Quad-port Gigabit Ethernet x4 PCI Express Adapter, RoHS-compliant | BCM95719A1904AC
- Connectors: 4 x RJ45
- Model #: BCM95719A1904AC
- $121.99 –
- Free Shipping
Quick View
PCIe 3.1 X1 5G PCIE Network Card, Realtek RTL8126 Chip Multi-Gigabit RJ45 LAN NIC, Support 5000Mbps/2500Mbps/1000Mbps for Desktop Motherboard
- Model #: C4P5-US167
- $23.29 –
- Free Shipping
Quick View
2Pcs W5500 Ethernet Network Module SPI Interface Full Hardware TCP/IP Protocol 3.3V 5V W5500 STM32 Microcontroller Ethernet Network for Arduino
- Model #: Kepler-8.10-OYS-635
- $13.99 –
- Free Shipping
Quick View
StarTech.com 2-Port 5G Gigabit PCIe Network Adapter Card - PCI Express LAN Card - Realtek RTL8126 - Windows and Linux - TAA PR25GR-NETWORK-CARD
- Brand: StarTech
- Parts: 2-Year
- Labor: 2-Year
- Model #: PR25GR-NETWORK-CARD
- $150.62 –
- More options from $149.99 - $168.68
![[4-Pack] 10Gb SFP+ to RJ-45 Module Transceiver 98Ft (30m), 10 Gigabit SFP+ Copper Ethernet CAT6a Transceivers Compatible with 1.25Gb, NOT Compatible with Brand HP, Dell, Aruba, H3C](https://c1.neweggimages.com/productimage/nb300/C577D26022405IFNY25.jpg "[4-Pack] 10Gb SFP+ to RJ-45 Module Transceiver 98Ft (30m), 10 Gigabit SFP+ Copper Ethernet CAT6a Transceivers Compatible with 1.25Gb, NOT Compatible with Brand HP, Dell, Aruba, H3C")