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CalDigit TS4 Thunderbolt 4 Dock, Space Gray. The listing discussed below is Amazon ASIN B09GK8LBWS.

The Anker 555 is still the hub I would keep on a normal MacBook desk: one 4K monitor, Ethernet, USB-A leftovers, SD, and PD passthrough without Thunderbolt money. This note is the other fork. When the desk needs downstream Thunderbolt, 2.5GbE, UHS-II card slots, DisplayPort, and one cable that actually feels like a workstation, the dock I would buy is the CalDigit TS4.

Premium ticket — about $379.99 on Amazon US when I checked. Model story on the listing: 18-port Thunderbolt 4 dock, Space Gray, 0.8m certified cable in the box. This is a buying note from a Mac engineer in Jakarta, not a claim that I ran a six-month thermal lab. Specs below come from the Amazon listing for ASIN B09GK8LBWS and CalDigit’s product materials. I am not going to pretend I A/B’d every Thunderbolt dock on the market.

Check the CalDigit TS4 on Amazon →

Why this particular dock

Headline specs from the listing and CalDigit:

• 18 ports in a vertical/horizontal aluminum brick (about 5.55 × 1.65 × 4.46 in, ~1.41 lb / 0.64 kg).
• 3× Thunderbolt 4 (40Gb/s): one host path for the Mac, two downstream for daisy-chain storage / displays / more docks.
• 3× USB-C + 5× USB-A at 10Gb/s data (front USB-C can supply up to 20W; other USB power budgets are lower per CalDigit).
• DisplayPort 1.4 plus display paths over the spare Thunderbolt ports (HDMI needs an adapter).
• 2.5GbE Ethernet (Thunderbolt-host story for full 2.5G; backwards compatible with 1GbE gear).
• SD + microSD 4.0 UHS-II card readers.
• Up to 98W host charging over the Thunderbolt cable, with a 230W brick in the box.
• Front combo 3.5mm audio plus rear audio in/out; Kensington slot; included 0.8m Intel-certified Thunderbolt 4 cable.

It is the pro end of the same map as my USB-C hubs and docking stations roundup. The 555 answers “one honest desk brick.” The TS4 answers “one last dock.”

What I actually want from a full Mac desk dock

• One cable to the laptop. Charge + displays + Ethernet + leftovers without a pouch of dongles.
• Downstream Thunderbolt. Fast SSDs and daisy-chain paths the Anker hub cannot give you.
• Real network headroom. 2.5GbE when the router/NAS can use it; fine as 1GbE when they cannot.
• Card slots that are not an afterthought. UHS-II SD and microSD on the front matter for camera dumps and Pi images.
• Honest display math. Dual high-res external displays need a Mac with the display engines for it — Pro/Max/Ultra (and some M4 base cases per CalDigit’s current notes). Base M1–M3 Macs stay on one external display through Thunderbolt. That is Apple’s limit, not CalDigit hiding a second HDMI.

It sits next to the same desk story as the MX Master 3S for Mac and a T7 Shield for portable archives. Mouse and travel SSD are optional. The dock is the spine.

The honest caveats

Price. At roughly $380 this is not an impulse brick. If you only need one HDMI monitor and gigabit Ethernet, buy the Anker 555 and keep the difference.

98W is not every MacBook’s full brick. CalDigit rates up to 98W to the host. That covers Air and most 14-inch Pro days. A 16-inch MacBook Pro that wants a hotter wall adapter will still charge through the TS4, just not necessarily at the laptop’s absolute maximum charge rate.

DisplayPort, not HDMI. Native video out is DisplayPort 1.4. HDMI monitors want an active adapter path. Budget for that cable if your panel is HDMI-only.

Thunderbolt 5 exists. CalDigit’s newer TS5 / TS5 Plus chase 80Gb/s-class links and higher host wattage. The TS4 remains a Thunderbolt 4 (40Gb/s) dock. Do not buy TS4 expecting Thunderbolt 5 bandwidth. Buy TS4 when its exact port mix and mature TB4 story match the desk you have today.

Mixed customer reliability notes. The Amazon listing shows a large review pile with praise for ports and build, plus real complaints about Ethernet quirks, heat, and units that failed after months. Treat that as a reason to buy from Amazon with an easy return window, not as a pretend-perfect lab score.

Use the certified cable. CalDigit and the listing are blunt: cheap uncertified Thunderbolt/USB4 cables cause weird failures. Prefer the included 0.8m cable or another Intel-certified one.

My honest buying call

I would buy the CalDigit TS4 (B09GK8LBWS) when the Amazon price is in its normal ~$380 band and I want one Thunderbolt 4 spine for a MacBook Pro desk: dual-display capable silicon, downstream TB4, 2.5GbE, UHS-II cards, and enough USB that the pouch of dongles can stay in a drawer.

I would skip it if I only need one monitor + Ethernet (start with the Anker 555 note), if my Mac is a base M1–M3 that will never drive two externals through Thunderbolt, if I specifically need Thunderbolt 5 / 140W-class charging, or if $380 is the whole peripheral budget. For the wider map of hubs vs docks, read the hubs and docking stations roundup.

Check the CalDigit TS4 on Amazon

A quick product video

This public walkthrough covers the CalDigit TS4 with a MacBook Pro desk focus (ports, charging, layout). Useful for seeing the brick and cable story; still read the specs and caveats above rather than treating a YouTube review as a long-term reliability test.

Product details and prices can change. Confirm colour, seller, return terms, and display claims against your Mac’s chip before buying.

If you are weighing Thunderbolt 5 against the TS4, see my TS4 vs TS5 worth-it fork before you buy.