I/O Cards & Adapters

I/O cards and adapters make it possible to expand a computer’s connectivity beyond what the motherboard offers. Whether you need extra ports, faster connections, or support for older devices, these components give you the flexibility to customize your system for your exact needs.

USB expansion cards are among the most common upgrades. They add extra USB 2.0, 3.0, or USB-C ports, giving you more room for peripherals like drives, input devices, or accessories. They're especially useful in systems with limited ports or when upgrading to newer standards.

Network interface cards (NICs) provide wired connectivity at speeds beyond basic Ethernet. From standard gigabit to 2.5G and 10G options, these cards improve transfer rates and support more reliable communication in professional or server environments. Some offer fiber support for high-end networking needs.

Sound cards offer an upgrade over built-in audio, with enhanced clarity, multi-channel output, and digital inputs and outputs. They're ideal for recording setups, content creation, or home entertainment systems that demand higher-quality audio.

Other cards focus on video, offering HDMI or DisplayPort outputs, or capturing video input from cameras, consoles, or other sources. These are popular among streamers, AV technicians, and anyone working with media production.

Legacy and industrial interfaces are also supported. Serial and parallel port cards allow you to connect older devices, equipment, or diagnostic tools that still use RS-232 or DB25 connectors. These adapters are common in commercial or manufacturing environments.

Some cards expand storage capabilities by adding SATA, NVMe, or M.2 connections, letting you install more drives or access faster storage formats. These are often used in custom builds or to add functionality to older systems.

Most I/O cards use PCIe slots and are compatible with standard desktop cases. Some are designed in low-profile form factors for smaller builds. Many are plug-and-play, while others may require drivers depending on the operating system and device type.

Whether you’re expanding connectivity, upgrading performance, or maintaining compatibility with older devices, I/O cards and adapters help you shape your system to fit the job.