StarTech Adapters
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StarTech.com 2-Port USB 3.2 Gen 2 PCIe Card, USB-C 10Gbps PCI Express 3.0 x4 Controller, USB Type-C, Data Only, Windows/macOS/Linux, TAA - PEXUSB312C3
Regular price $55.99 USDRegular priceUnit price / perSale price $55.99 USD -
StarTech.com 4-Port USB PCIe Card, 10Gbps USB PCI Express Expansion Card with 2 Controllers, 2x USB-C & 2x USB-A ports (USB 3.2 Gen 2) - PEXUSB312A2C2V
Regular price $144.99 USDRegular priceUnit price / perSale price $144.99 USD -
StarTech.com 2-Port 10Gbps USB-A & USB-C PCIe Card Adapter - USB 3.2 Gen 2 PCI Express Expansion Add-On Card - Windows, macOS, Linux - PEXUSB311AC3
Regular price $50.99 USDRegular priceUnit price / perSale price $50.99 USD -
StarTech.com Dual M.2 PCIe SSD Adapter Card - x8 / x16 Dual NVMe or AHCI M.2 SSD to PCI Express 3.0 - M.2 NGFF PCIe (m-key) Compatible - PEX8M2E2
Regular price $189.99 USDRegular priceUnit price / perSale price $189.99 USD -
StarTech.com U.3 to PCIe Adapter Card, PCIe 4.0 x4 Adapter For 2.5" U.3 NVMe SSDs, SFF-TA-1001 PCI Express Add-in Card, TAA Compliant\n - PEX4SFF8639U3
Regular price $50.99 USDRegular priceUnit price / perSale price $50.99 USD -
StarTech.com 4-port PCI Express RS232 Serial Adapter Card - PCIe Serial DB9 Controller Card 16950 UART - Low Profile - Windows/Linux - PEX4S953LP
Regular price $114.99 USDRegular priceUnit price / perSale price $114.99 USD -
StarTech.com x4 PCI Express to M.2 PCIe SSD Adapter - M.2 NGFF SSD (NVMe or AHCI) Adapter Card - PEX4M2E1
Regular price $27.99 USDRegular priceUnit price / perSale price $27.99 USD -
StarTech.com AC600 Wireless-AC Network Adapter - 802.11ac, PCI Express - Dual Band 2.4GHz and 5GHz Wireless Network Card - PEX433WAC11
Regular price $54.99 USDRegular priceUnit price / perSale price $54.99 USD -
StarTech.com PCI Express Wireless N Adapter - 300 Mbps PCIe 802.11 b/g/n Network Adapter Card - 2T2R 2.2 dBi - PEX300WN2X2
Regular price $34.99 USDRegular priceUnit price / perSale price $34.99 USD -
StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe Serial DB9 Controller Card 16950 UART - Low Profile - Windows and Linux - PEX2S953LP
Regular price $51.99 USDRegular priceUnit price / perSale price $51.99 USD -
StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe to Dual Serial DB9 RS-232 Controller - 16950 UART - Windows and Linux - PEX2S953
Regular price $51.99 USDRegular priceUnit price / perSale price $51.99 USD -
StarTech.com PCI Express Serial Card? 2 port? Dual Channel 16C1050 UART? Serial Port PCIe Card? Serial Expansion Card - PEX2S1050
Regular price $55.99 USDRegular priceUnit price / perSale price $55.99 USD -
StarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe Serial DB9 Controller Card 16950 UART - Low Profile - Windows/Linux - PEX1S953LP
Regular price $51.99 USDRegular priceUnit price / perSale price $51.99 USD -
StarTech.com 1-Port Parallel PCIe Card, PCI Express to Parallel DB25 LPT Adapter Card, Desktop Expansion Controller for Printer, SPP/ECP - PEX1P2
Regular price $35.99 USDRegular priceUnit price / perSale price $35.99 USD -
StarTech.com 3 Port 2b 1a LP 1394 PCI Express FireWire Card - PEX1394B3LP
Regular price $69.99 USDRegular priceUnit price / perSale price $69.99 USD -
StarTech.com 3 Port 2b 1a 1394 PCI Express FireWire Card - PEX1394B3
Regular price $69.99 USDRegular priceUnit price / perSale price $69.99 USD
Bridge Any Connection Gap in Your Setup
Island Electrical Supply carries StarTech adapters and converters for video, USB, network, and serial connections. Whether you need to connect a USB-C laptop to a VGA projector, add Ethernet to a tablet, or convert fiber to copper, StarTech has an adapter for it.
Best for: IT departments, help desks, and AV integrators who need a reliable supply of adapters to connect legacy and modern devices across every interface standard.
Shop by Adapter Type
- Video Adapters — HDMI, DisplayPort, USB-C, DVI, and VGA converters for multi-monitor setups
- USB Adapters — USB-C to USB-A, USB to serial, USB to Ethernet, and more
- Network Adapters — Gigabit, 2.5G, and 10G Ethernet adapters (USB and PCIe)
- Media Converters — fiber-to-copper, SFP-based, and protocol converters
- Wireless Adapters — WiFi and Bluetooth USB adapters
Choosing the Right Adapter
Active vs Passive Adapters
Passive adapters simply rewire pin connections between compatible standards (e.g., DisplayPort to HDMI). Active adapters contain a conversion chip and are required when the source port does not natively output the target signal — for example, USB-C to VGA or USB-C to dual HDMI. Active adapters cost more but support broader compatibility.
USB-C vs Thunderbolt
USB-C adapters work with any USB-C port. Thunderbolt adapters require a Thunderbolt 3 or 4 port but deliver higher bandwidth — important for dual 4K displays, 10 Gigabit Ethernet, or PCIe storage. Check your laptop specs to know which port you have before buying.
Pair With Your Adapters
- Cables — the cables that connect to your adapters
- Docking Stations — multi-port laptop docks when a single adapter is not enough
- USB Hubs — expand USB ports alongside your adapters
- Monitors — displays for your video adapters and converters
- All Networking Equipment — switches, APs, and firewalls
- All StarTech Products — the full 1,400+ product catalog
Qualifying orders ship free. Contact our team for adapter compatibility guidance.
Frequently Asked Questions
Will a USB-C to HDMI adapter support 4K?
Most StarTech USB-C to HDMI adapters support 4K at 30Hz or 60Hz depending on the model. Check the specific product specs for maximum resolution and refresh rate. Models with DisplayPort Alt Mode or Thunderbolt 3/4 support generally deliver 4K 60Hz.
Do StarTech network adapters work without drivers?
Many StarTech USB Ethernet adapters are natively supported by Windows 10/11, macOS, and Linux with no additional drivers. Check the product compatibility list for your operating system. PCIe network cards may require a driver download.