CalDigit Connect 10G
- 10 Gb Ethernet over Thunderbolt
- Thunderbolt 3, 4 and 5, USB4 compatible
- Bus powered, no separate adapter
- Mac and PC compatible
- Fast Ethernet and Gigabit link protocols
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A bus-powered Thunderbolt to ten gigabit Ethernet adapter for Mac and PC. The listing is short, so confirm cable and port details with the maker.
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ASIN: B07RH7VPDFModel: TB3-Connect10G-USCategory: Network Cards
Overview
Not a PCIe card for a desktop slot, this CalDigit adapter connects over a Thunderbolt Type-C port and presents a PCIe Ethernet connection to a Mac or PC. It draws power from the bus and also works with newer Thunderbolt and USB4 ports.
The ten gigabit link and bus power are the reason to buy it for fast network storage on a laptop. The limit is the thin data: no cable length, port count or chipset detail is given in the listing.
Who it's for
Editors, developers and IT users on Mac or PC who move large files over a fast network will use the full link. People on ordinary gigabit networks gain nothing from the faster port.
Pros and cons
- Ten gigabit transfer rate
- Works with Mac and PC
- Thunderbolt and USB4 compatible
- Needs ten gigabit network gear
- Box contents not listed
- Cable length not listed
Performance notes
The adapter converts a Thunderbolt connection into an Ethernet port, so speed is capped by the network gear on the other end. The full rate needs matching switch ports and cabling. On slower networks it falls back to the lower listed protocols.
Specifications
| Brand | CalDigit |
|---|---|
| Model | TB3-Connect10G-US |
| Power & efficiency | |
| Power | Bus powered |
| Construction & materials | |
| Color | black,grey |
| Compatibility & installation | |
| Hardware interface | Ethernet, Thunderbolt, Thunderbolt 3, Thunderbolt 4, USB Type C |
| Compatibility | Mac and PC; Thunderbolt 3, 4 and 5, USB4 |
| Other details | |
| Data transfer rate | 10 gigabits per second |
| Data link protocol | Fast Ethernet, Gigabit Ethernet |
| Part number | TB3-Connect10G-US |
Frequently asked questions
What is included with the CalDigit Connect 10G?
The listing does not list contents. Check the seller page for the cable and any carry accessories.
Is the Connect 10G a PCIe card for a desktop?
No. It is an external adapter that uses a Thunderbolt Type-C port, though the title calls it a PCIe Ethernet adapter.
Does it need a power adapter?
The title says bus powered, so power comes from the Thunderbolt port.