Thunderbolt 4 Dock – Dual Monitor 21 Ports USB C Docking Sta…
$249.99Original price was: $249.99.$204.99Current price is: $204.99.
From the brand
At SmartLinx, we design products that enhance productivity. We understand that work happens everywhere—at the office, at home, or on the go.
Every SmartLinx docking station is thoughtfully designed and rigorously tested to ensure seamless performance wherever you work.
Thunderbolt 4 Dual Monitor
Thunderbolt 4 Penta Monitor
Thunderbolt 3 Dual Monitor
16″ 2.5K Laptop Screen Display
15.6″ 1K Laptop Screen Display
[21-Port Dock for Mac] – 8K@60Hz HDMI, 2.5GbE, SD/TF 4.0, 3x TB4 (40Gbps), 7x USB-C/A 3.2 (10Gbps), 2x USB 2.0, and 3x 3.5mm audio jacks. [Broad Compatibility] – Works with MacBook Pro/Air, Windows, Chrome OS, iPads, and tablets with TB or USB-C. Supports M2, M1 series, Intel Macs, and USB-C iPhone 15/15 Pro. [Dual 4K @ 60Hz] – Supports dual 4K @ 60Hz or single 8K @ 60Hz. Windows/Mac Pro/Max: Dual monitors (Mirror & Extended). Note: M1/M2/M3 supports only one display. [Fast & Efficient Charging] – Equipped with a 150W power charging, this USB-C Hub supports up to 90W laptop charging, along with 20W fast charging for your phone, tablet, or power bank. Devices over 90W may charge unstably. [Blazing-Fast Data Transfers] – 3x TB4 (40Gbps), 7x USB-C/A 3.2 (10Gbps) and 2x USB 2.0 (5Gbps) for ultra-fast file transfers and syncing. [2.5GbE High-Speed Port] – 2.5× faster than 1GbE for rapid network, router, and NAS connections. Backward compatible with 1GbE; requires TB host and 2.5GbE+ devices for peak performance. [12-Month Warranty] – Backed by SMARTLINX with a 12-month warranty. Contact us anytime via Amazon for support.
Price: $249.99 - $204.99 (as of Apr 28, 2025 11:38:20 UTC – Details)
Customers say
Customers find the docking station works well, with one mentioning its seamless compatibility with both Windows and Mac. They appreciate its port capacity, with one customer noting it has plenty of power and ports, while another describes it as an amazing dock perfect for power users. Customers also consider it reasonably priced.
8 reviews for Thunderbolt 4 Dock – Dual Monitor 21 Ports USB C Docking Sta…
Dalton Bell –
Amazing Dock- Perfect for Power Users!
This Smartlinx Thunderbolt 4 Dock is an absolute game-changer! Setting up multiple monitors (quad 4K + one 8K) was effortless, and the DisplayLink chipset ensures smooth performance with no lag. The 40Gbps Thunderbolt 4 speeds make file transfers lightning-fast, and the 21 ports provide all the connectivity I need—USB-C, USB-A, HDMI, DisplayPort, Ethernet, and more.It works seamlessly with both Windows and Mac, making it a perfect all-in-one solution for professionals and power users. If you need a high-performance docking station, this is worth every penny!
Joe G. –
Good for Legacy USB 3.0 Devices
This SmartLink Thunderbolt “4” is good for if you have many Legacy USB 3.0 devices but may not so for Lighting devices. There are 6 USB 3.0 ports in the front and 3 Lighting ports, 1 used for the laptop uplink and 1 spare in the back and 1 in the front and 1 USB-C in the front.I reduced it by one “star” because of monitor support, you need to download “DisplayLink” drivers from the Manufacturer’s site and enabled on your Mac. MacOS requires the user to permit “Screen Recording” in order for DisplayLink devices to work properly. The message is generated by the OS and the screen is not actually being recorded by DisplayLink. Approving it enables the DisplayLink driver to access the pixels it needs to render a mirrored or extended screens, and send the pixels over USB from your computer to the DisplayLink display. It does not send any data or pixels back to DisplayLink. (I hope). Other Thunderbolt 4 docks that I’ve used doesn’t require this driver, it just works! Need further testing to see if this driver will conflict with my other docking station.If you have only one dock, this works well and is reasonably priced.
Luke Fitzgerald –
Works well
I’m able to run my whole recording setup with this. Apollo 8 thunderbolt interface, keyboard, drum machine, 2 monitors and 3 hard drives and external keyboard and charge my phone and computer. It’s great
Gilbert –
handy docking station
good product for laptops that need more ports, easy plug and play setup.
Rhoads W. Brady –
Legit thunderbolt port out
Used it to connect an older thunderbolt 2 monitor to a mac with a thunderbolt 3 adapter, and wanted to have charging and connect a controller and ssd, now with one cable from this dock to the laptop it’s a full desktop. I was a little worried because docks typically dont have a thunderbolt out, and hardly have usb c for power but this thing does exactly what I hoped
John M –
Plenty of power and ports but…
…what other users have said about the audio quality suffering is the truth. The dock itself is an absolute powerhouse, especially coming from a 90 watt dock that began to have flickering issue. I have all but a USB-C port occupied in this dock and it hasn’t skipped a beat, is snappy and responsive. If you’re an audiophile and need premium sound at all times, maybe look into cable shielding options since this dock seems to produce a constant background ‘hiss’ at all times. Its okay for online meetings and the like, but does get annoying enough that I keep the volume muted when not using it.
A gordon –
Works flawlessly
Update works flawlessly
Tester 1 –
Not compatible as is out of the box with the Mac mini M4
Not compatible with Mac mini M4. Runs very hot and damages connected M.2 drives which also run hot (corrupts drives).The heating starts as soon as it the host cable is plugged into the Minis M4 port. There appears to be a power conflict between it and the Mac mini m4 that is propagated to the connected drive or drives. Works as it should when connected to a Dell Windows EXP TB 4 equipped laptop. It has everything and more a user could want and is relatively small with many ports. The power brick is very large and probably is well power oversized for most users.
Dalton Bell –
Amazing Dock- Perfect for Power Users!
This Smartlinx Thunderbolt 4 Dock is an absolute game-changer! Setting up multiple monitors (quad 4K + one 8K) was effortless, and the DisplayLink chipset ensures smooth performance with no lag. The 40Gbps Thunderbolt 4 speeds make file transfers lightning-fast, and the 21 ports provide all the connectivity I need—USB-C, USB-A, HDMI, DisplayPort, Ethernet, and more.It works seamlessly with both Windows and Mac, making it a perfect all-in-one solution for professionals and power users. If you need a high-performance docking station, this is worth every penny!
Joe G. –
Good for Legacy USB 3.0 Devices
This SmartLink Thunderbolt “4” is good for if you have many Legacy USB 3.0 devices but may not so for Lighting devices. There are 6 USB 3.0 ports in the front and 3 Lighting ports, 1 used for the laptop uplink and 1 spare in the back and 1 in the front and 1 USB-C in the front.I reduced it by one “star” because of monitor support, you need to download “DisplayLink” drivers from the Manufacturer’s site and enabled on your Mac. MacOS requires the user to permit “Screen Recording” in order for DisplayLink devices to work properly. The message is generated by the OS and the screen is not actually being recorded by DisplayLink. Approving it enables the DisplayLink driver to access the pixels it needs to render a mirrored or extended screens, and send the pixels over USB from your computer to the DisplayLink display. It does not send any data or pixels back to DisplayLink. (I hope). Other Thunderbolt 4 docks that I’ve used doesn’t require this driver, it just works! Need further testing to see if this driver will conflict with my other docking station.If you have only one dock, this works well and is reasonably priced.
Luke Fitzgerald –
Works well
I’m able to run my whole recording setup with this. Apollo 8 thunderbolt interface, keyboard, drum machine, 2 monitors and 3 hard drives and external keyboard and charge my phone and computer. It’s great
Gilbert –
handy docking station
good product for laptops that need more ports, easy plug and play setup.
Rhoads W. Brady –
Legit thunderbolt port out
Used it to connect an older thunderbolt 2 monitor to a mac with a thunderbolt 3 adapter, and wanted to have charging and connect a controller and ssd, now with one cable from this dock to the laptop it’s a full desktop. I was a little worried because docks typically dont have a thunderbolt out, and hardly have usb c for power but this thing does exactly what I hoped
John M –
Plenty of power and ports but…
…what other users have said about the audio quality suffering is the truth. The dock itself is an absolute powerhouse, especially coming from a 90 watt dock that began to have flickering issue. I have all but a USB-C port occupied in this dock and it hasn’t skipped a beat, is snappy and responsive. If you’re an audiophile and need premium sound at all times, maybe look into cable shielding options since this dock seems to produce a constant background ‘hiss’ at all times. Its okay for online meetings and the like, but does get annoying enough that I keep the volume muted when not using it.
A gordon –
Works flawlessly
Update works flawlessly
Tester 1 –
Not compatible as is out of the box with the Mac mini M4
Not compatible with Mac mini M4. Runs very hot and damages connected M.2 drives which also run hot (corrupts drives).The heating starts as soon as it the host cable is plugged into the Minis M4 port. There appears to be a power conflict between it and the Mac mini m4 that is propagated to the connected drive or drives. Works as it should when connected to a Dell Windows EXP TB 4 equipped laptop. It has everything and more a user could want and is relatively small with many ports. The power brick is very large and probably is well power oversized for most users.