My desk in Marietta used to look like a server room. Two monitors, an external SSD, a webcam, ethernet, a card reader, charging cables—every USB port on my MacBook Pro was occupied, and I still needed more. The CalDigit TS4 solved this problem so completely that I now connect my entire workstation with a single Thunderbolt cable. One cable. Everything powers on, both displays light up, ethernet connects, and my laptop starts charging at 98W. After six months of relying on it daily, I consider the TS4 the single most impactful upgrade I have made to my home office. It is not cheap at around $380, but it replaced three separate hubs and a charger, which puts the value in perspective.
18 Ports and Zero Compromises
The TS4 packs 18 ports into an aluminum enclosure roughly the size of a thick paperback book. The front panel has a SD and microSD card reader, a USB-C port, a USB-A port, and a 3.5mm audio combo jack. The rear panel is where things get serious: three Thunderbolt 4 downstream ports, three USB-A 3.2 ports, one USB-A 2.0, 2.5 Gigabit Ethernet, DisplayPort 1.4, and a USB-C 3.2 Gen 2 port. The upstream Thunderbolt 4 connection delivers up to 98W of power to your laptop. The build quality is outstanding—the aluminum chassis doubles as a heat sink and stays warm but never hot. CalDigit includes a beefy 230W power supply, which is why it can deliver so much power to both the laptop and peripherals without breaking a sweat.
Specs
| Total Ports | 18 (Thunderbolt 4, USB-A, USB-C, DisplayPort, Ethernet, Audio, SD) |
| Upstream Connection | Thunderbolt 4 (98W laptop charging) |
| Thunderbolt 4 Downstream | 3 ports (40Gbps each) |
| Display Support | Dual 4K@60Hz or single 8K@30Hz (DisplayPort 1.4 + Thunderbolt) |
| Ethernet | 2.5 Gigabit Ethernet |
| Card Reader | SD 4.0 UHS-II + microSD 4.0 UHS-II |
| Power Supply | 230W external brick |
| Dimensions | 5.55" x 3.94" x 1.54" |
Six Months as My Daily Hub
The TS4 has been completely reliable since day one. I have not experienced a single disconnect, sleep-wake issue, or display dropout in six months. My dual 4K monitors wake up within three seconds of plugging in the Thunderbolt cable. The 2.5GbE ethernet gives me a stable wired connection for video calls, which eliminated the occasional Wi-Fi drops that used to interrupt Zoom meetings. The front-panel SD reader handles my camera cards at full UHS-II speed, which is a nice bonus since I shoot product photos for the site. The only physical annoyance is the power brick—it is large and takes up space behind the desk. But once it is tucked away, you forget about it entirely. I have had zero driver issues on macOS or Windows.
Who Should Buy This
The CalDigit TS4 is for remote workers who use a Thunderbolt-equipped laptop as their daily driver and want a single-cable docking experience. If you run dual monitors, multiple USB peripherals, and want wired ethernet, this dock handles all of it without compromises. Content creators will appreciate the fast card readers and abundant Thunderbolt ports for external storage. Skip this if your laptop lacks Thunderbolt 4 or USB4—you will not get the full port functionality or charging speed over a standard USB-C connection.
[rtg_buy_button url="/go/caldigit-ts4-thunderbolt-dock" text="Check Price on Amazon"]Frequently Asked Questions
Does the TS4 work with Windows laptops or just Macs?
It works with any laptop that has a Thunderbolt 4 or USB4 port. I have tested it with both a MacBook Pro and a Dell XPS 15 without any compatibility issues. Windows requires no additional drivers.
Can it charge a 16-inch MacBook Pro at full speed?
The TS4 delivers 98W, which is enough to charge a 16-inch MacBook Pro while you work. It matches the included Apple charger for the base model and comes close for the M3 Max configuration.
How do I connect two monitors if there is only one DisplayPort?
You connect one monitor via the DisplayPort output and the second via one of the downstream Thunderbolt 4 ports using a Thunderbolt-to-DisplayPort or USB-C-to-HDMI cable. Both run at 4K 60Hz simultaneously.
Is the 2.5GbE ethernet noticeably faster than Gigabit?
For typical remote work tasks like video calls and file sharing, you will not notice a difference. Where it shines is large file transfers on a fast network—transferring a 10GB video file to a NAS is about twice as fast as Gigabit ethernet.
Bottom Line: The CalDigit TS4 is the best Thunderbolt dock I have used and the most transformative single purchase for my home office. One cable replaces an entire tangle of adapters, hubs, and chargers. The price is high, but the reliability, port selection, and build quality justify it for anyone serious about their remote work setup.
Remote Tech Gear is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. We only recommend products we've actually tested in our Marietta, GA home office. Full disclosure here.