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Compact black and silver Thunderbolt 3 docking station with four USB ports

STARTECH

STARTECH TB33A1C docking station 4 ports 10G 5G 1xC 3xA

SKU CH-7M4A-SJQ1Q MPN TB33A1C

Adds four USB ports to a Thunderbolt 3 laptop with 20 Gbps shared bandwidth

  • Port details2 x Thunderbolt 3 USB-C (24-pin) Male 2 x USB Type-A (9 pin)
  • Measurements0.9 in × 2.9 in × 5.8 in
  • Product colorBlack/Silver
  • Compatible withOS Compatibility Windows 7, 8, 8.1, 10 macOS 10.12–10.3
  • Product weight7.1 oz
  • Key featuresConvert a laptop's Thunderbolt 3 port into multiple USB cont
  • Add four independent USB ports sharing 20Gbps bandwidth from a single Thunderbolt 3 connection
  • Connect high-speed external SSDs and 3D scanners via two dedicated 10Gbps ports
  • Fast-charge phones and accessories through the USB-A fast-charge port
  • Daisy-chain additional Thunderbolt 3 devices using the extra Thunderbolt 3 port
  • Works with Windows 7 through 10 and macOS 10.12 to 10.3

What this Thunderbolt 3 hub adds

The StarTech TB33A1C turns one Thunderbolt 3 port into four independent USB controller ports sharing 20Gbps of bandwidth. It provides one USB-C 10Gbps port, one USB-A 10Gbps port and two USB-A 5Gbps ports. An extra Thunderbolt 3 port allows daisy-chaining another device. Designed for laptops running Windows 7 through 10 or macOS 10.12 to 10.3.

Check your laptop before ordering

Verify the computer has a Thunderbolt 3 port and runs Windows 7, 8, 8.1, 10 or macOS 10.12 through 10.3. The hub draws power from that single Thunderbolt 3 connection, so no external power supply is required. Confirm the total 20Gbps shared bandwidth is sufficient for the peripherals you plan to attach simultaneously.

How it fits into a setup

The compact black and silver unit measures 0.90 by 2.90 by 5.80 inches and weighs 7.10 ounces, making it easy to carry alongside a laptop. It frees up the need for multiple separate adapters by consolidating high-speed USB-C, USB-A 10Gbps and two USB-A 5Gbps connections in one hub. The daisy-chain port keeps the Thunderbolt 3 chain open for displays or storage.

How it compares

Measured against everything we stock in USB-C & Laptop Docking Stations, at today’s prices. Recalculated every night.

Price $154.99
Pricier than about 69% of the 1,971 comparable items (median $81.99).

Specifications

Product
Brand nameStarTech.com
Model nameTB33A1C
Product colorBlack/Silver
Ports & slots
Thunderbolt 3 supportYes
Port details2 x Thunderbolt 3 USB-C (24-pin) Male
2 x USB Type-A (9 pin) USB 3.0 Female
1 x USB 3.1 USB Type-A (9 pin, Gen 2, 10 Gbit/s) Female
1 x USB Type-C (24 pin) USB 3.1 (10 Gbit/s)
Size & build
Measurements0.9 in × 2.9 in × 5.8 in
Product weight7.1 oz
Shipping weight1.81 kg
Package size312 × 259 × 198 mm
Compatibility
Compatible withOS Compatibility
Windows 7, 8, 8.1, 10
macOS 10.12–10.3

Questions about this item

What comes in the box and do I need a separate Thunderbolt cable?

The package includes the hub and a Thunderbolt 3 cable so no extra cable is required.

Should I pick the 10 Gbps USB-C port or the 5 Gbps USB-A ports for an external SSD?

Use the 10 Gbps USB-C or USB-A port for the SSD; the two 5 Gbps USB-A ports are better for lower-bandwidth peripherals.

What does the 20 Gbps shared bandwidth mean when all four ports are busy?

The 20 Gbps total is split between the two 10 Gbps ports and two 5 Gbps ports, so combined throughput cannot exceed that limit.

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