New Mac Migration Assistant Setup with Thunderbolt Cables ~ Plugable Technologies

TL;DR

Apple’s Migration Assistant can transfer your apps, accounts, files, and settings from an old Mac to a new one without erasing either machine.
A direct Thunderbolt cable connection is often faster and more consistent than a wireless migration, especially for large photo, video, or project libraries.
Plugable’s Thunderbolt cables support up to 40Gbps (Thunderbolt 4) or 80Gbps (Thunderbolt 5) — though actual migration speed depends on both Macs, their ports, and storage speeds, not just the cable.
For most Mac-to-Mac migrations, the Thunderbolt 4 240W EPR Cable (TBT4-240W-1M) is the strongest all-around pick; see the full lineup below for longer or right-angle options.
These cables stay useful after migration for docks, displays, and high-speed external storage.

Plugable’s Thunderbolt cable lineup gives Mac users a high-speed, direct connection for transferring your applications, accounts, files, and settings from your old Mac to a new Mac. These cables are ideal for any Mac featuring Thunderbolt 3 to Thunderbolt 5 ports on MacBook Pro, MacBook Air, Mac mini, iMac, and Mac Studio users who want to move their existing Mac environment to a new Mac including installed applications, files, and settings through using the macOS Migration Assistant application.

Apple’s built-in migration tool is designed to transfer documents, apps, user accounts, and settings from one Mac to another without deleting information from your old Mac or replacing macOS on your new one. And while Migration Assistant can work wirelessly, directly connecting your previous Mac to your new Mac with a Thunderbolt cable is often a faster way to move your data.

For Mac users moving large photo libraries, video projects, code repositories, design files, large media libraries, or years of “I’ll organize this later” downloads, Plugable Thunderbolt cables are a simple way to take what can take several hours over Wi-Fi to a fraction of that with Thunderbolt speeds.

Why Thunderbolt Makes Mac Migration Faster

Thunderbolt is built for high-performance data, display, and power over a compact USB-C connector. Plugable has options for both Thunderbolt 4 and Thunderbolt 5 cables.

Thunderbolt 4 can support up to 40Gbps data transfer and Thunderbolt 5 can support 80Gbps data transfer speeds, which is dramatically faster than wireless large data transfers.

However, it is important to note that these are the maximum capabilities of the Thunderbolt link and cable, not the actual speed Migration Assistant will run at. Your final migration speed will still be limited by the slower Mac or port in the chain, internal SSD speeds, and the types of files being transferred.

Plugable Thunderbolt cables also have additional features that make them useful even after your Mac migration is done. Thunderbolt cables also support connecting to high-resolution 4K or 8K displays, fast charging up to 240W Extended Power Range (EPR) charging on compatible hardware, can be used with docking stations, and even external storage drives.

The transfer migration speed does have limitations such as the speed of the internal storage drive on the Mac, the number of tiny files being moved, the version of the Thunderbolt port on the Mac, and overhead processing time from macOS itself can all affect the final transfer time.

Still, when the alternative is watching a Wi-Fi transfer crawl while you see minimal movement on the progress bar, a direct Thunderbolt connection can provide a faster, and more consistent option for large migrations.

Plugable Thunderbolt Cable Lineup for Mac Migration

For most Mac-to-Mac Migration Assistant workflows, the best Plugable cable is the one that matches your ports, distance, and future setup. Thunderbolt cables are backwards compatible and we recommend matching the Thunderbolt cable with the Thunderbolt version on your newest Mac, such as Thunderbolt 5 found on M5 Pro and M5 Max MacBook Pros.

Cable comparison at a glance

Cable	Length	Max Speed	Max Charging	Display Support
TBT4-240W-1M	1m	40Gbps	240W	Dual 4K 60Hz or single 8K 30Hz
TBT4-40G2M	2m	40Gbps	100W	Dual 4K 60Hz or single 8K 30Hz
TBT4-240W-80CMR	0.8m, right angle	40Gbps	240W	Dual 4K 120Hz or single 8K 60Hz
TBT5-240W1M	1m	80Gbps (120Gbps with Bandwidth Boost)	240W	Single 4K 540Hz, dual 8K 60Hz, or triple 4K 144Hz

Plugable Thunderbolt 4 240W EPR Cable, 1m — TBT4-240W-1M

This is the go-to “do a lot with one cable” option. It is Thunderbolt Certified, supports up to 40Gbps data transfer, supports up to 240W charging, and can handle two 4K displays or one 8K display with compatible hardware. It’s a strong pick for a Mac migration today and a high-performance dock, display, or storage connection tomorrow.
Plugable Thunderbolt 4 Cable, 2m — TBT4-40G2M

Need more room between Macs? The 2 meter Thunderbolt 4 cable is a great fit when your old Mac is on one side of the desk and your new Mac is on the other. It supports up to 40Gbps data transfer, 100W Power Delivery, two 4K screens or one 8K screen, and is compatible with Thunderbolt 4, Thunderbolt 3, USB4, and USB-C.
Plugable Thunderbolt 4 Cable, 0.8m — TBT4-240W-80CMR

A right angle 90 degree cable connection can be ideal for fitting in tight spaces. This cable spans 0.8 meters, features 240W charging, 40Gbps transfer speeds, it can support dual 4K 120Hz displays or a single 8K display.
Plugable Thunderbolt 5 Cable, 1m — TBT5-240W1M

The 1m Thunderbolt 5 cable is the ultimate cable that features our fastest 80Gbps data transfer speeds and supports Thunderbolt 5 Bandwidth Boost up to 120Gbps. It is also 8K video or triple displays at 4K 144Hz capable, and delivers up to 240W Power Delivery. This Thunderbolt 5 cable is great for future proofing.

How to Use Migration Assistant with a Thunderbolt Cable

Before you start, make sure each Mac is up to date and it’s not required that each Mac is on the same version on macOS. Next, be sure to turn off any antivirus, VPN, or firewall software that is in use on either Mac until the migration is complete.

Start by connecting the old Mac and new Mac directly with a compatible Plugable Thunderbolt cable.
On the new Mac, open Migration Assistant. If you are setting up the Mac for the first time, migration is part of Setup Assistant. If you have already completed setup, open Migration Assistant from the Utilities folder in Applications, or go to System Settings > General > Transfer or Reset > Open Migration Assistant.
When prompted on the new Mac, choose the option to transfer from a Mac, Time Machine backup, or startup disk. On the old Mac, open Migration Assistant and choose the option to transfer to another Mac.
Then select the old Mac on the new Mac, you’ll then see a security code that you’ll have to confirm on your other Mac.
Next you’ll see a ‘Transfer Your Information’ window where you can choose what you want to transfer over to your new Mac, then you’ll be prompted to set a password on your new Mac, and finally let Migration Assistant do its thing.
During the transfer, keep both Macs awake, powered, and connected.

Why a Plugable Thunderbolt Cable Is Useful After Migration

A Mac migration may be the reason you buy the cable, but it probably won’t be the last time you use it. A certified Thunderbolt cable is also useful for connecting Thunderbolt docks, high-speed external SSDs, displays, USB4 devices, hubs, and other professional peripherals. Plugable’s Thunderbolt 5 cables are backward compatible with Thunderbolt 4, Thunderbolt 3, and USB-C devices, with supported features depending on the connected hardware.

That makes a Plugable Thunderbolt cable a smart “keep it in the IT drawer” accessory. It can help with new Mac deployments, employee laptop refreshes, creative workstation upgrades, backup workflows, external storage transfers, and desk setups built around Thunderbolt docks and displays.

The Takeaway

Migration Assistant makes moving to a new Mac easier. A Plugable Thunderbolt cable can make that move faster, cleaner, and more reliable than relying on Wi-Fi alone. This is ideal for users who use lots of storage space on their Macs or for IT environments where new Mac setups are frequent for employees.

Your new Mac is ready. Your old Mac is packed. Thunderbolt is the moving truck.

FAQ

Can I use a Plugable Thunderbolt cable with macOS Migration Assistant?

Yes. Connect your old Mac and new Mac with a compatible Thunderbolt cable, then use Migration Assistant on both Macs. A direct Thunderbolt connection is often faster than wireless migration, especially for large transfers.

Will Migration Assistant delete anything from my old Mac?

No. Migration Assistant transfers information from one Mac to another. It does not delete information from the old Mac or replace macOS on the new Mac.

How fast is Thunderbolt for Mac data transfer?

Plugable Thunderbolt 4 cables support up to 40Gbps data transfer, Thunderbolt 5 cables support up to 80Gbps or 120Gbps with Bandwidth Boost, but real-world migration speed depends on both Macs, their ports, storage speeds, file types, and system conditions.

Which Plugable Thunderbolt cable should I use for Mac migration?

For most modern Mac migrations, the TBT4-240W-1M is the strongest all-around choice thanks to Thunderbolt Certification, up to 40Gbps data transfer, and up to 240W charging. Choose the TBT4-40G2M when you need a longer 2m cable, or the TBT4-240W-80CMR when a right-angle connector makes your setup cleaner.

Can I use a Thunderbolt 4 cable with a Thunderbolt 3 Mac?

Yes. Plugable Thunderbolt 4 cables are backward compatible with Thunderbolt 3 and USB-C devices, though available features depend on the connected devices.

Why not just use Wi-Fi or Ethernet for Migration Assistant?

Wi-Fi can work, but a direct Thunderbolt connection is often faster and more stable for large Mac-to-Mac transfers. For users with big media libraries, project folders, or full-system migrations, Thunderbolt is the more consistent option.