Main trade-off
CalDigit TS4
Separate power brick and 98W host supply. Ethernet requires a Thunderbolt or PCIe-capable USB4 connection and is unavailable in ordinary USB-C fallback.
Head-to-head
CalDigit TS4 vs Anker Prime Thunderbolt 5: TS4 keeps more fast USB-A gear connected, Anker removes the power brick
The short answer
TS4 has five 10Gb/s USB-A sockets, while Anker integrates its power supply. Choose CalDigit when several fast USB-A devices, UHS-II camera cards or a supported older Thunderbolt computer matter. Choose Anker for a supported modern host when its up-to-140W charging and brick-free power layout solve the desk. TS4 supplies 98W. Anker excludes Thunderbolt 3 hosts and displays, and its HDMI and DisplayPort cannot be used together.
Before you choose
The reasoning and the trade-offs
The photo-copy upgrade can disappear at the card reader
Coming home with a UHS-II camera card does not make Anker’s UHS-I reader run as a UHS-II connection. TS4 includes the faster reader interface despite being the older Thunderbolt generation. If card imports are the recurring bottleneck, buying Anker and adding a separate UHS-II reader can consume another USB socket and leave an accessory on the desk. That reader may still be worthwhile, but include it in the purchase. Actual copying depends on the card and destination drive, so this is a compatibility advantage rather than a promised number of minutes saved.
What this is based on
Documented reader interfaces and external USB connections. No measured import speed or assumption that every UHS-II card saturates its interface.
Main trade-off
Anker Prime Thunderbolt 5 A83B5
Three USB-A sockets and UHS-I readers. TB3 hosts and displays are excluded, and only one of HDMI or DisplayPort can be active.
CalDigit TS4
- Choose it for
- Five USB-A accessories should remain connected without an extra hub, including devices that need a fast data path.
- UHS-II card copying or a supported Thunderbolt 3 host is part of the regular routine.
- Main trade-off
- Separate power brick and 98W host supply. Ethernet requires a Thunderbolt or PCIe-capable USB4 connection and is unavailable in ordinary USB-C fallback.
Anker Prime Thunderbolt 5 A83B5
- Choose it for
- A compatible laptop can use more than 98W USB power and you want the dock supply inside the enclosure.
- A supported modern host and an HDMI monitor make the fixed HDMI output more useful than additional USB-A sockets.
- Main trade-off
- Three USB-A sockets and UHS-I readers. TB3 hosts and displays are excluded, and only one of HDMI or DisplayPort can be active.
About this comparison
CalDigit TS4 vs Anker Prime A83B5 for a shared work and photo desk. Compare older laptop support, camera-card copying, accessories and the full power setup.
An established premium TB4 dock and a newer TB5 full dock are realistic alternatives for a mixed work and hobby desk. The useful differences concern existing equipment, not simply the newer protocol number.
Winner by situation
Start with what you need it to do
Connect five USB-A devices directly
TS4 has five sockets, Anker has three.
- CalDigit TS4
- Better fit
- Anker Prime Thunderbolt 5 A83B5
- Caution
Use a built-in UHS-II reader for compatible camera cards
TS4 has the UHS-II interface.
- CalDigit TS4
- Better fit
- Anker Prime Thunderbolt 5 A83B5
- Caution
Remove the separate dock power brick
Anker integrates its supply.
- CalDigit TS4
- Caution
- Anker Prime Thunderbolt 5 A83B5
- Better fit
Offer a compatible laptop more than 98W over USB
Anker offers up to 140W within supported charging conditions.
- CalDigit TS4
- Caution
- Anker Prime Thunderbolt 5 A83B5
- Better fit
What matters in practice
The differences that matter
The photo-copy upgrade can disappear at the card reader
Coming home with a UHS-II camera card does not make Anker’s UHS-I reader run as a UHS-II connection. TS4 includes the faster reader interface despite being the older Thunderbolt generation. If card imports are the recurring bottleneck, buying Anker and adding a separate UHS-II reader can consume another USB socket and leave an accessory on the desk. That reader may still be worthwhile, but include it in the purchase. Actual copying depends on the card and destination drive, so this is a compatibility advantage rather than a promised number of minutes saved.
How we reached this conclusion
Documented reader interfaces and external USB connections. No measured import speed or assumption that every UHS-II card saturates its interface.
A shared desk should be tested against its oldest computer
A newer personal laptop may support both docks, while a retained Thunderbolt 3 work computer changes the choice. Anker expressly excludes TB3 hosts and displays. TS4 supports relevant older hosts, with exact operating-system and display checks still required. Ordinary USB-C fallback on TS4 is not equivalent to Thunderbolt either: its Ethernet relies on PCIe and is lost on a basic USB-C connection. List both computers and any Thunderbolt display before ordering. The desk is only convenient if the person arriving with the less capable machine can still use the connections they need.
How we reached this conclusion
Manufacturer host and display exclusions plus TS4 PCIe Ethernet requirement. No blanket promise for every older machine or USB-C port.
The brick-free dock can gain a USB hub in its place
A webcam, microphone, keyboard receiver, capture device and external drive make five USB-A connections. TS4 has five fast sockets, while Anker has three. Some of those devices may instead use suitable USB-C cables, and a low-speed receiver does not need a 10Gb/s link. Count the actual plugs before adding a hub. Anker’s integrated power supply removes a separate brick, but an extra USB hub can reduce that tidy-desk benefit. Conversely, a three-device setup on a compatible high-power laptop can make Anker’s integrated supply and higher host power the simpler arrangement. Socket counts do not promise full speed to every device at once.
How we reached this conclusion
Illustrative five-device connection plan, verified five versus three USB-A sockets and supply placement. Cable changes are conditional and shared bandwidth remains a limit.
Choice A
CalDigit, TS4-US 500971
CalDigit TS4
Five USB-A accessories should remain connected without an extra hub, including devices that need a fast data path.
- Best matched use
- Five USB-A accessories should remain connected without an extra hub, including devices that need a fast data path.
Checked facts
- Fast USB-A sockets: Five at 10Gb/s
- Camera-card reader interface: UHS-II SD and microSD
- Host power: 98W sustained
- Power supply placement: Separate 230W supply
Choice B
Anker, A83B5
Anker Prime Thunderbolt 5 A83B5
A compatible laptop can use more than 98W USB power and you want the dock supply inside the enclosure.
- Best matched use
- A compatible laptop can use more than 98W USB power and you want the dock supply inside the enclosure.
Checked facts
- Fast USB-A sockets: Three at 10Gb/s
- Camera-card reader interface: UHS-I SD and microSD
- Host power: Up to 140W
- Power supply placement: Integrated supply
Meaningful differences
What changes the fit
| What changes | CalDigit TS4 | Anker Prime Thunderbolt 5 A83B5 | Why it matters |
|---|---|---|---|
| Fast USB-A sockets | Five at 10Gb/s | Three at 10Gb/s | A five-device desk can add a separate hub to Anker. |
| Camera-card reader interface | UHS-II SD and microSD | UHS-I SD and microSD | A UHS-II card cannot upgrade a UHS-I reader. |
| Host power | 98W sustained | Up to 140W | Compare the exact laptop’s supported charging and workload. |
| Power supply placement | Separate 230W supply | Integrated supply | Count the brick and cables when clearing the desk. |
| Thunderbolt 3 compatibility | Supported hosts subject to exact limits | TB3 hosts and displays excluded | A newer dock can remove compatibility with equipment already owned. |
What you give up
Every choice has a cost
If you choose CalDigit TS4
- Check the older host’s exact display support. A demanding laptop may still need its original charger.
If you choose Anker Prime Thunderbolt 5 A83B5
- Count a separate UHS-II reader or USB hub if your existing equipment needs one. Verify the host and display matrix.
Recommendation switch
The decision flips if...
Existing USB gear, camera cards or older hosts lead
Choose CalDigit TS4. TS4 retains the relevant connections after exact compatibility checks.
Modern-host power and a simpler supply layout lead
Choose Anker Prime Thunderbolt 5 A83B5. Anker fits that setup without a separate dock brick.
What matters in practice
Before you choose
You want a tidier desk and a modern dock, but do not want to add adapters for the camera cards, USB gear or older computer that already work for you.
What this comparison cannot tell you
- No measured copy-time or charging comparison.
- Total sockets do not establish simultaneous full bandwidth.
What the facts say
What the comparison shows
Useful conclusions from the current docking stations comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| CalDigit TS4 |
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| Anker Prime Thunderbolt 5 A83B5 |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
CalDigit TS4
Five USB-A accessories should remain connected without an extra hub, including devices that need a fast data path.
UHS-II card copying or a supported Thunderbolt 3 host is part of the regular routine.
See price & reviews on AmazonAnker Prime Thunderbolt 5 A83B5
A compatible laptop can use more than 98W USB power and you want the dock supply inside the enclosure.
A supported modern host and an HDMI monitor make the fixed HDMI output more useful than additional USB-A sockets.
See price & reviews on AmazonLinks open in a new tab.