Compare a Thunderbolt dock with a built-in power supply and 90 W host charging against the TS4 with an external 230 W supply and 98 W charging. Both offer 2.5 Gb/s Ethernet.
The decision in brief
How the options differ
Both are 40 Gb/s Thunderbolt docks with 2.5 Gb/s Ethernet ports. The Thunderbolt Go Dock builds the power supply into the dock and charges a host at up to 90 W with a 0.7 m certified cable; the TS4 uses an external 230 W supply, charges at up to 98 W and includes a 0.8 m Thunderbolt 4 cable. Neither reviewed page explicitly declares or denies built-in DisplayLink, so display layouts depend on the host matrix.
By CompareFoundry · Published · Editorial review · Manufacturer documentation, not hands-on testing.
The buying guide
Package and specification details
Weigh the built-in supply against the charging rating
The Thunderbolt Go Dock removes the external power brick with a built-in supply and a figure-eight mains cord, and its documented host charging is 90 W. The TS4 ships an external 230 W power supply and cord and documents 98 W of host charging; the supply rating is not the laptop charging figure. Confirm the US mains selection for either dock.
Expect the same network rate with the same conditions
Both document a 2.5 Gb/s Ethernet port. A rated link is not a measured file-transfer result; the host, driver, switch and cabling remain dependencies for both docks.
Use the host display matrix before counting monitors
Both pages direct you to the manufacturer host and display matrix: GPU, operating system, display mode and adapters control the usable arrangement. No explicit DisplayLink declaration or denial was verified for either dock, and some USB-C host scenarios on the OWC dock require a separate adapter and driver. A USB data port on the dock is not automatically a display output.
The OWC package lists a certified 0.7 m Thunderbolt USB-C cable; the TS4 package lists a 0.8 m Thunderbolt 4 host cable. Confirm regional power accessories and any display adapters before buying.
These manufacturer specifications do not establish measured performance, noise, long-term reliability or running cost. We have not independently tested these products. Check current prices, stock and operating-space instructions with the seller and manufacturer.
Exact model only. Confirm regional power accessories and any additional display adapters before buying. No stock or checkout validation.
Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Where to buy
Thunderbolt Go Dock (US package)
Select: Thunderbolt Go Dock; US-market package, confirm the US mains cord; no extra display adapters assumed.
The link may open several packages. Check current price and availability with the seller. Opens in a new tab.
External rating
Thunderbolt Go Dock (US package)
4.7 out of 5from 9 ratings · B&H Photo ↗ · Checked October 23, 2026.
TS4 (US package)
4.4 out of 5from 156 ratings · B&H Photo ↗ · Checked October 23, 2026.
Host connection
The documented upstream protocol and connection limits.
Connector shape is not protocol support. A backward-compatible connection may lose some features.
Thunderbolt Go Dock (US package)40 Gb/s Thunderbolt host path; USB and other host configurations have separate display limitations.Source · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)Thunderbolt 4 / USB4 at up to 40 Gb/s; other host connections have feature limits.Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Maximum documented host charging
The host charging limit for the reviewed package, not the power supply rating.
The host must accept the offered power. A model sold in multiple revisions needs package-specific evidence.
Thunderbolt Go Dock (US package)90 WSource · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)98 WSource · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Charging conditions
Revision, host and rated-versus-certified qualifications.
Do not promise full charging under every workload or substitute the adapter wattage.
Thunderbolt Go Dock (US package)The built-in power supply removes the external power brick; the documented host charging rating remains 90 W.Source · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)Maximum documented host charging is 98 W; the external power supply is rated separately.Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Nominal Ethernet rate
The maximum documented Ethernet link rate, not measured file throughput.
Host support, drivers, network equipment and cabling must all be suitable.
Thunderbolt Go Dock (US package)2.5 Gb/sSource · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)2.5 Gb/sSource · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Ethernet conditions
Host and driver qualifications for the network port.
A physical network connector is not proof that the port works over every upstream connection.
Thunderbolt Go Dock (US package)A rated network link is not a measured file-transfer result; the host, driver, switch and cabling remain dependencies.Source · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)A rated network link is not a measured file-transfer result; the host, driver, switch and cabling remain dependencies.Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Display arrangement
Documented display paths and host-dependent limits.
Check exact resolution, refresh rate, host GPU and simultaneous-screen requirements. Do not add alternative connectors together.
Thunderbolt Go Dock (US package)Use the manufacturer host/display matrix. GPU, operating system, display mode and any adapters control the usable simultaneous arrangement.Source · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)Use the manufacturer host/display matrix. GPU, operating system, display mode and any adapters control the usable simultaneous arrangement.Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Built-in DisplayLink documented
Whether DisplayLink is established as part of the dock itself.
An optional external adapter does not become a built-in feature. Unknown does not mean absent.
Thunderbolt Go Dock (US package)Not verified
We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice.
No explicit built-in DisplayLink declaration or denial was verified for this exact dock. Native display guidance does not settle every optional adapter.Source · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)Not verified
We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice.
No explicit built-in DisplayLink declaration or denial was verified for this exact dock. Native display guidance does not settle every optional adapter.Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Host and software requirements
Important software, host and configuration conditions.
Check the current manufacturer support page for the exact computer; no installed compatibility or security certification is claimed.
Thunderbolt Go Dock (US package)Verify the exact computer and required display adapters. Some USB-C scenarios require a separate display adapter and driver; no universal display count is asserted.Source · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)Verify the exact host port, GPU and display requirements. A USB data port on the dock is not automatically a display output.Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Power arrangement and supplied equipment
Built-in or external power and reviewed package contents.
Confirm the regional mains cord before buying; a global product page is not a checked US checkout.
Thunderbolt Go Dock (US package)Built-in power supply and figure-eight mains-cord arrangement; confirm the US cord and complete box contents.Source · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)External 230 W power supply and power cord documented; confirm the US mains selection.Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Included host cable
The cable documented as supplied with this package.
A replacement cable needs appropriate protocol and power ratings; a matching connector alone is insufficient.
Thunderbolt Go Dock (US package)Certified OWC Thunderbolt USB-C cable, 0.7 m.Source · 2026-10-11OWC: Thunderbolt Go Dock US/International productChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
TS4 (US package)Thunderbolt 4 host cable, 0.8 m.Source · 2026-10-11CalDigit: TS4 specifications and packageChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Questions to check before buying
Thunderbolt Go Dock (US package)Read the source notes for the exact package and operating conditions.
TS4 (US package)Read the source notes for the exact package and operating conditions.
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