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Silver aluminium Thunderbolt 3 hub with HDMI, USB-C, USB-A and card slots

SIIG, Inc

SIIG, Inc JU-TB0412-S1 Thunderbolt 3 card reader

SKU CH-G5F5-JWDPH MPN JU-TB0412-S1

A Thunderbolt 3 hub adds HDMI, USB-C, two USB-A ports and SD/microSD slots while charging a 13″ or 15″ MacBook Pro at full speed

  • Interface typeUSB Type C
  • Product typeFlash Reader/USB Hub Combo
  • In the boxThunderbolt 3 USB-C Hub HDMI with Card Reader & PD Adapter -
  • Thunderbolt 3 certified for reliable compatibility across devices
  • Charges 13" MacBook Pro at 61W or 15" at 87W via Power Delivery
  • Adds HDMI 4K@30Hz plus three USB 3.1 Gen 1 ports for display and peripherals
  • Reads SD and microSD cards up to 2TB including UHS-I variants
  • Aluminium housing in a compact design for portable connectivity expansion

Purpose and audience

The SIIG JU-TB0412-S1 is a Thunderbolt 3 certified dock that adds video, data and card-reader ports to a MacBook Pro 13" or 15". It suits photographers and video editors who need SD and microSD access alongside a 4K HDMI output and extra USB ports. Buyers whose laptops lack a Thunderbolt 3 USB-C connection cannot use this hub.

Sustained workload behaviour

The hub delivers up to 40Gbps throughput on the Thunderbolt link and 5Gbps on each USB 3.1 Gen 1 port during long copy sessions. The SD and microSD slots support UHS-I cards up to 2TB capacity for continuous offload. Power Delivery passes 61W or 87W to the host without throttling the data lanes.

Thermals noise and power

An aluminium enclosure dissipates heat silently because no fan is present. The unit draws its operating power from the Thunderbolt bus and the attached PD adapter, adding no audible noise. Surface temperature stays low during typical multi-port use.

How it compares

Measured against everything we stock in USB & Internal Card Readers, at today’s prices. Recalculated every night.

Price $45.99
Pricier than about 84% of the 511 comparable items (median $18.99).

Specifications

Product
Brand nameSIIG
Product typeFlash Reader/USB Hub Combo
Ports & slots
Interface typeUSB Type C
Size & build
Shipping weight0.08 kg
Package size180 × 75 × 25 mm
In the box
In the boxThunderbolt 3 USB-C Hub HDMI with Card Reader & PD Adapter - Silver
User Reference Guide

Questions about this item

Does the aluminum housing keep the hub cool when I run it all day?

The aluminum housing helps dissipate heat during extended use, and the hub draws power through the Thunderbolt 3 connection without a separate fan.

Which MacBook Pro models and power adapters do I already need for the 61W or 87W charging to work?

It supports 13" (61W) and 15" (87W) MacBook Pro models when connected to a PD-compatible power adapter via the Thunderbolt 3 port.

Will my older USB 3.0 Type-A drives work at full speed on the two Type-A ports?

The two Type-A ports run at USB 3.1 Gen 1 speeds up to 5Gbps, matching USB 3.0 performance for existing drives.

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