Transfer Files from PC to PC via USB

Updated 4 November 2026 · Standard formula, shown below

Yes, you can transfer files from one PC to another using a USB cable, a USB flash drive, or an external hard drive. The most straightforward method is to copy files to a USB storage device on the first computer, then plug it into the second computer and paste the files. For direct PC-to-PC transfer without intermediate storage, you can use a USB-to-USB bridging cable (often called a “USB data transfer cable”) or a USB network link cable, which lets two computers communicate directly through their USB ports.

Background: Why Use USB for PC-to-PC Transfer?

USB transfer is a reliable, offline method for moving files between computers, especially when you don’t have a network connection or cloud storage. It works for any file typeâ€”documents, photos, videos, software installersâ€”and doesn’t require an internet connection. The main advantage over network transfer is simplicity: you don’t need to configure sharing settings or worry about Wi-Fi interference. However, USB 2.0 is slower than modern Ethernet or Wi-Fi, so for very large transfers (e.g., 50+ GB), a network or a USB 3.0 drive is faster.

How USB File Transfer Works

There are two distinct methods:

Using a USB storage device (flash drive or external HDD/SSD): You copy files from the source PC to the drive, then plug the drive into the target PC and copy them off. This is the most common and requires no special software.
Using a USB-to-USB cable (bridging cable): A special cable with a small electronics module in the middle connects two PCs via their USB ports. It creates a mini network between the two computers, and you use included software (like EasyTransfer or Windows Easy Transfer) to select files to move. This method is faster than using a flash drive for large numbers of small files, but the cable is more expensive than a basic flash drive.

Note: A regular USB cable (like the one that charges a phone) will not work for PC-to-PC transfer because it lacks the necessary controller chip to create a network link. You need a dedicated bridging cable, often labeled “USB data transfer cable” or “USB networking cable.”

How to Transfer Files Using a USB Flash Drive

Plug the flash drive into a USB port on the source PC.
Open File Explorer (Windows) or Finder (Mac) and locate the files you want to transfer.
Copy the files (right-click â†’ Copy, or Ctrl+C on Windows / Cmd+C on Mac).
Navigate to the flash drive (it appears as a removable disk) and paste the files (right-click â†’ Paste, or Ctrl+V / Cmd+V).
Safely eject the drive (right-click the drive and choose “Eject”) before unplugging it.
Plug the drive into the target PC and copy the files from the drive to the desired location.

This method works for any OS (Windows, macOS, Linux) as long as the drive is formatted in a compatible file system. For cross-platform use, format the drive as exFAT, which is supported by all modern systems.

How to Transfer Files Using a USB Bridging Cable

Install the software that comes with the cable on both PCs (or download it from the manufacturer’s website).
Connect the cable to a USB port on each PC.
Launch the transfer software on both computers. It will detect the other PC.
Select the files or folders you want to transfer and choose the destination folder on the target PC.
Start the transfer and wait for it to complete.

Bridging cables typically support USB 2.0 speeds (up to 480 Mbps theoretical, but real-world is often 20-40 MB/s). Some newer cables support USB 3.0 for faster speeds. The software usually allows you to transfer files, folders, and even system settings (like user accounts) between Windows PCs.

Choosing the Right USB Transfer Method

For occasional transfers of a few GB: A USB flash drive is cheapest and simplest. You probably already have one.
For large transfers (50+ GB) or many small files: A USB 3.0 external SSD or HDD is faster than a bridging cable and more reliable than a flash drive. However, if you don’t have an external drive, a bridging cable might be worth the cost.
For moving an entire user profile or system settings: A bridging cable with its software (like Windows Easy Transfer) can move user accounts and settings, which you can’t easily do with a flash drive.
For one-time transfer between two PCs you own: A flash drive or external drive is usually best because you can keep it for backups later.

Common Problems and How to Solve Them

PC doesn’t recognize the USB drive: Try a different USB port, restart the PC, or check if the drive needs a driver (rare). If the drive is formatted with a file system the PC doesn’t support (e.g., NTFS on a Mac), reformat it to exFAT (note: reformatting erases data).
Transfer speed is very slow: Make sure you’re using a USB 3.0 port (blue interior) with a USB 3.0 drive/cable. Also, avoid transferring many tiny filesâ€”zip them into a single archive first.
Bridging cable not detected: Install the driver software first, then plug in the cable. Restart both PCs if needed. Some cables require the software to be running before connecting.
File copy fails midway: This often happens due to file system errors or a failing drive. Try copying the files in smaller batches, or use a different USB port.
Permission errors when copying: On Windows, you may need administrator rights. Right-click the file and choose “Properties” to check permissions, or copy to a folder you own (like Documents). On macOS, unlock the file if it’s locked.

USB Transfer vs. Network Transfer

USB transfer is ideal for one-time, offline transfers, but for regular backups or moving large amounts of data between two computers on the same network, a network transfer is often faster and more convenient. Ethernet (wired) can achieve 100 MB/s or more, while Wi-Fi 5/6 can reach similar speeds. To transfer over a network, you can share a folder on one PC and access it from the other. This requires both PCs to be on the same network and to have sharing enabled. USB is more secure in the sense that the data doesn’t travel over the network, but it’s less convenient for ongoing transfers.

Frequently Asked Questions

Can I use a regular USB cable to connect two PCs?

No. A standard USB cable (like a printer or phone cable) lacks the electronics to create a direct PC-to-PC connection. You need a dedicated USB bridging cable that includes a chip to enable data transfer between two computers. Using a regular cable could damage the USB ports.

What is the fastest way to transfer files between two PCs?

The fastest method depends on your hardware. For large volumes, a USB 3.0 or USB-C external SSD can achieve 200-500 MB/s, which is faster than most network transfers. For network transfers, a wired Gigabit Ethernet connection can reach about 112 MB/s. If both PCs have USB 3.0 and you have a bridging cable that supports USB 3.0, that can also be fast, but external drives are generally more versatile.

How long does it take to transfer 10 GB via USB?

With USB 2.0 (real-world ~30 MB/s), 10 GB takes about 5-6 minutes. With USB 3.0 (real-world ~100 MB/s), it takes about 1-2 minutes. Actual speed depends on the drive’s read/write speed and the file size (many small files are slower).

Can I transfer files from a PC to a Mac using USB?

Yes. Use a USB flash drive or external drive formatted as exFAT, which both Windows and macOS can read and write. Alternatively, you can use a USB-to-Ethernet adapter on the Mac and connect via a network, but that’s more complex. There is no USB bridging cable that works between Windows and Mac because the software is OS-specific.

Is it safe to unplug a USB drive during transfer?

No. Unplugging during a transfer can corrupt the files being written and damage the drive’s file system. Always wait for the copy to finish, then use the “Safely Remove Hardware” option (Windows) or drag the drive to the Trash (macOS) before unplugging.

Do I need special software for USB-to-USB cable transfer?

Yes. The bridging cable comes with software that you must install on both PCs. This software manages the connection and provides a user interface for selecting files. Without it, the cable is just a piece of hardware that does nothing.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.