StarTech.com 305B-USBC-MULTIPORT Docking Station - StarTech USB C Multiport Adapter with 4K 60Hz HDMI, 140W Power Delivery, USB 10Gbps, GbE, SD / MicroSD Slots, Plug and Play Transform one USB C port into 4K 60Hz HDMI, USB C, and USB A ports reducing the

Transform a single USB-C port into a mobile workstation with 4K 60Hz HDMI, 140W USB-C PD passthrough, USB-C and USB-A connectivity, and integrated SD/microSD card readers, with ports on both sides for easier access and a 8-inch (20.3cm) braided tethered cable for flexible, durable use in shared workspaces and travel setups.

Keep High-Performance Systems Powered

Support demanding workflows with up to 140W USB-C Power Delivery passthrough. Keep AI-ready laptops, mobile workstations, and power-hungry systems running at full capacity while maintaining display and peripheral connectivity through one compact adapter.

Connect More Devices Without Giving Up Ports

Add three USB 10Gbps ports for high-speed storage and accessories, plus a USB 2.0 port for keyboards, mice, or other essential peripherals. Ideal for thin laptops, 2-in-1s, and MacBooks where port availability is limited.

Easy Card Access Anywhere

Integrated SD and microSD 4.0 card readers support simultaneous file transfers to streamline media handling across cameras, mobile devices, and external storage. Eliminate extra adapters and reduce setup time for content creation, field work, and mobile IT environments.

Product Description

Technical Information

Connectivity Technology:
Wired
Charging Capability:
Yes
Number of Displays Supported:
1
Supported Resolutions:
3840 x 2160
Screen Mode Supported:
4K @ 60Hz
Memory Card Reader:
Yes
Management Features:
PXE Boot, Wake-on-LAN
Memory Card Supported:
SD, microSD
Device Supported:
Notebook, Mobile Workstation, Card Reader, Keyboard, Mouse, MacBook, Camera, Mobile Device, Workstation, Display, Monitor

Network & Communication

Ethernet Technology:
Gigabit Ethernet

Interfaces/Ports

Host Interface:
USB 3.2 Type C
Total Number of USB Ports:
5
Number of USB 3.2 Gen 2 Type-A Ports:
2
Number of USB 3.2 Gen 2 Type-C Ports:
2
Number of USB Type-C Ports:
2
USB Type-C:
Yes
USB Type-C Detail:
1 x USB 3.2 Type-C (24 pin, Gen 2, 10Gbps), 1 x USB Type-C (24 pin) USB Power Delivery Only
Number of USB Type-A Ports:
3
USB Type-A:
Yes
Number of RJ-45 Ports:
1
Network (RJ-45):
Yes
Number of HDMI Outputs:
1
HDMI:
Yes
USB Power Delivery:
140W
Total Number of Ports:
9

Software

Operating System Supported:
Windows 10, Windows 11, Mac OS X 13.0 Ventura, macOS 14, macOS Sequoia 15, macOS Tahoe 26.0, Linux, Ubuntu 20.04, iPadOS, iOS, macOS Sonoma, macOS Ventura

Physical Characteristics

Product Color:
Space Gray
Height:
0.60"
Width:
2.30"
Weight (Approximate):
4.80 oz

Miscellaneous

Environmental Compliance:
Restriction of Hazardous Substances (RoHS), Waste Electrical and Electronic Equipment Directive (WEEE)