USB Types and Versions: A Beginner's Guide

USB-A vs. USB-C: What's the Difference?

USB-A is the classic rectangular port that has been on PCs for decades. It is found on most desktop towers, monitors, and peripherals like mice and keyboards. USB-A connectors are not reversible, so you have to insert them the right way up.

USB-C is a newer, oval-shaped connector that is reversible, meaning you can plug it in either way. It is becoming the standard for many devices, including smartphones, laptops, and increasingly gaming peripherals. USB-C can support faster data transfer, higher power delivery, and video output, depending on the version and implementation.

For gaming, USB-A is still the most common port for wired mice and keyboards, while USB-C is often used for headsets, controllers, and external storage. Many modern gaming PCs include both USB-A and USB-C ports on the front and back panels. When choosing a prebuilt gaming PC, check that it has enough USB-A ports for your mouse and keyboard, and at least one USB-C port for future peripherals.

USB Versions: USB 3.2 and USB4

USB versions define the data transfer speed and capabilities of the connection. USB 3.2 is a common version found on many gaming PCs and peripherals, offering speeds up to 20 Gbps with the right cable and port. USB4 is the latest version, offering speeds up to 40 Gbps and supporting video and power delivery over a single cable.

The version number is often printed near the port or in the PC's specifications. For example, a port labeled USB 3.2 Gen 2 supports up to 10 Gbps, while USB 3.2 Gen 2x2 supports up to 20 Gbps. USB4 is the newest standard and is designed to be faster and more versatile.

For gaming, the version matters most for high-speed storage and external devices. A USB4 port can handle large file transfers quickly and support high-resolution displays, which is useful for docking stations and external GPUs. If you plan to use an external SSD for games, look for a PC with USB4 or at least USB 3.2 Gen 2x2 to take advantage of fast transfer speeds. See our guide on SSDs for gaming for more.

What USB Means for Gaming Peripherals

Most gaming mice and keyboards use USB-A connections, either wired or with a wireless receiver. These peripherals do not require high data transfer speeds, so USB 2.0 or USB 3.0 is sufficient. The main consideration is that the port provides a stable connection and enough power for the device.

Gaming headsets often use USB-A or USB-C for audio and microphone input. USB-C is becoming more common on newer headsets, especially wireless ones that use USB-C for charging. The version of USB does not affect audio quality, but a USB-C port can offer faster charging and a more secure connection.

External storage, such as SSDs, benefits from USB 3.2 or USB4 for fast load times. If you store games on an external drive, a USB4 port can significantly reduce loading times compared to older USB versions. However, for most gaming peripherals, the version is less critical than the connector type. For a full setup, consider a gaming PC for streaming if you need multiple USB ports for capture cards and audio interfaces.

USB-C for Gaming: What to Look For

USB-C is becoming the standard for many gaming devices, including controllers, VR headsets, and docking stations. When choosing a gaming PC, look for USB-C ports that support USB4 or at least USB 3.2 for future-proofing. This ensures compatibility with the latest peripherals and high-speed storage.

USB-C can also carry video signals, which is useful for connecting to monitors or VR headsets. Some gaming laptops use USB-C for charging, but on desktops, USB-C is typically used for data and peripherals. Check the specifications of your PC to see which USB versions are supported on each port.

For competitive gaming, the USB version is unlikely to affect performance, as input latency is more dependent on the peripheral and its polling rate. However, using a high-quality USB-C cable can ensure a stable connection for wireless receivers and charging. If you are into esports, a PC with multiple USB-A ports and a USB-C port is ideal for your esports gaming PC.

How to Check USB Ports on Your PC

To identify the USB version of a port, look for labels near the port, such as 'SS' (SuperSpeed) or 'USB 3.2'. You can also check your PC's manual or specifications online. In Windows, you can open Device Manager and expand 'Universal Serial Bus controllers' to see the USB host controllers and their versions.

If you are buying a prebuilt gaming PC, the specifications list will usually mention the USB ports and their versions. For example, a PC might have 'USB 3.2 Gen 2 Type-A' and 'USB4 Type-C' ports. Understanding these terms helps you know what peripherals you can connect and at what speed.

For most gaming setups, having at least two USB-A ports and one USB-C port is sufficient. If you use many peripherals, consider a USB hub, but ensure it supports the same USB version as your PC to avoid bottlenecks. When comparing prebuilt options, check the best prebuilt gaming PC guides for detailed specs.

What to Pick for Your Play

When choosing a gaming PC, consider the USB ports available. For a standard setup with a mouse, keyboard, and headset, USB-A ports are essential. For modern peripherals and fast storage, USB-C with USB4 support is a good investment.

If you plan to use an external SSD for games, look for a PC with USB4 or at least USB 3.2 Gen 2x2 to take advantage of fast transfer speeds. For competitive gaming, the USB version is less important than the peripheral's polling rate and response time.

The table below summarizes what to look for based on your gaming habits.

What to pick for your play

Questions

Is USB-C faster than USB-A?

USB-C is a connector type, not a speed rating. The speed depends on the USB version, such as USB 3.2 or USB4. A USB-C port can be faster than USB-A if it supports a higher version, but not always.

Do I need USB4 for gaming?

For most gaming peripherals, USB4 is not necessary. It is beneficial for high-speed external storage and docking stations. If you use an external SSD for games, USB4 can reduce load times.

Can I use USB-C for my gaming mouse?

Yes, many modern gaming mice use USB-C for charging or wired connection. However, the USB version does not affect mouse performance; the polling rate is more important.

What is the difference between USB 3.2 and USB4?

USB4 offers higher data transfer speeds (up to 40 Gbps) and supports video and power delivery over a single cable. USB 3.2 has lower maximum speeds and does not support video as broadly.

How do I know which USB version my PC has?

Check the ports for labels like 'SS' or 'USB 3.2'. You can also look in Device Manager under 'Universal Serial Bus controllers' or check your PC's specifications online.