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A silver rectangular dock with rounded edges and multiple ports, paired with a small round speaker in matching finish

Belkin

Belkin Connect Pro Thunderbolt 4 90W Dock + Boost U Speaker

SKU CH-S99C-ENNYW

A Thunderbolt 4 dock with 12 ports and 90 W charging paired with a Bluetooth speaker offering 5-hour playback

  • Three external monitors at 8K single or dual 4K resolution
  • 12 ports including Thunderbolt 4 HDMI USB-A USB-C Ethernet SD reader
  • 90W Power Delivery keeps laptop and devices charged while working
  • Boost U Bluetooth speaker with built-in mic for hands-free calls and remote shutter
  • 600 mAh battery delivers up to 5 hours playback water resistant

Central Hub for Multi-Display Workflows

The Belkin Connect Pro Thunderbolt 4 Dock acts as a single-cable command centre for laptops, delivering 12 ports that include Thunderbolt, HDMI, USB-A, USB-C, Gigabit Ethernet and an SD reader. It supplies up to 90W Power Delivery to keep the host machine charged while driving peripherals. The bundled Boost U speaker adds wireless audio with a built-in microphone for calls and a remote shutter for mobile capture.

Display Capacity and Power Headroom

A single external monitor can run at 8K (7680 x 4320) while dual monitors operate at 4K (3840 x 2160), with support for up to three screens in total. The 90W charging budget covers most ultraportables and mainstream notebooks, though laptops demanding higher wattage for heavy GPU loads will need their own adapter. The speaker’s 600 mAh cell provides roughly five hours of playback before requiring a recharge.

Thunderbolt Bandwidth and Speaker Constraints

Thunderbolt 4 bandwidth governs how many high-resolution streams and data lanes share the link, so driving three displays plus storage and networking simultaneously may reduce available throughput for each. The Boost U speaker pairs only via Bluetooth and charges over Micro-USB, limiting its use to wireless scenarios and slower top-ups compared to modern USB-C audio devices.

Highlights

  • Three external monitors at 8K single or dual 4K resolution
  • 12 ports including Thunderbolt 4 HDMI USB-A USB-C Ethernet SD reader
  • 90W Power Delivery keeps laptop and devices charged while working
  • Boost U Bluetooth speaker with built-in mic for hands-free calls and remote shutter
  • 600 mAh battery delivers up to 5 hours playback water resistant

Specifications

No published specifications for this item yet.

Questions about this item

Can I run two 4K monitors and my existing USB-A keyboard through this dock at the same time?

The dock supports dual 4K displays at 3840 x 2160 resolution and provides four USB-A ports for legacy peripherals such as keyboards, mice, or flash drives.

How do I verify the dock is delivering 90 W power and both external screens are active?

Check your laptop's battery icon to confirm it is charging at the full rate, then open display settings to see both external monitors detected at their native 3840 x 2160 resolution.

Does the package include the speaker charging cable and a Thunderbolt 4 host cable for my laptop?

The box contains the Thunderbolt 4 dock with its own host cable and power adapter, plus the Boost U speaker with a Micro-USB charging cord for its 600 mAh battery.

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