StarTech.com 315B-USBC-MULTIPORT Docking Station - StarTech USB C to HDMI Multiport Adapter with 140W PD Charging, 4K 60Hz, 5 Port USB 5Gbps Hub, GbE, Type C Mini Dock Transform one USB C port into 4K 60Hz HDMI / 140W USB C PD passthrough / USB data port

Turn one USB-C port into a complete mobile workstation with 4K video, 140W power, high-speed data, and wired network access.

Power AI & High-Powered Laptops Without Losing Performance

Deliver up to 140W USB-C Power Delivery passthrough to run AI workloads and charge high-draw laptops from a single port. Supports USB 5Gbps and 4K 60Hz HDMI at the same time, so users can drive a display, power the host, and connect peripherals. Ideal for shared desks and travel kits where port access is limited.

Expand Devices Without Adapter Sprawl

Add 3x USB-C and 2x USB-A 5Gbps ports to connect modern peripherals and legacy hardware in one setup. IT can standardize on a single adapter for hot desks, onboarding kits, or field deployments. Fewer dongles reduce support tickets, simplify asset management, and keep travel kits lightweight.

Secure Reliable Wired Connectivity

Integrated Gigabit Ethernet offers stable wired connectivity for large file transfers and cloud workflows when Wi-Fi is unreliable or restricted by policy.

Built for Sustainability, Designed for Performance

This hub features a housing made from 75% post-consumer recycled (PCR) aluminum, 75% PCR Plastic, and a cable jacket composed of 35% PCR TPE (Thermoplastic Elastomer). The product also ships in FSC Mix packaging made from responsibly sourced materials. These materials help align your IT infrastructure with your organization's sustainability goals, without compromising on quality or durability.

Product Description

Technical Information

Connectivity Technology:
Wired
Charging Capability:
Yes
Number of Displays Supported:
1
Supported Resolutions:
3840 x 2160
Screen Mode Supported:
4K, 4K @ 60Hz
Management Features:
Wake-on-LAN, PXE Boot
Device Supported:
MacBook, Desktop PC, Mobile Workstation, Mouse, Keyboard, Workstation, Notebook

Network & Communication

Ethernet Technology:
Gigabit Ethernet

Interfaces/Ports

Host Interface:
USB 3.2 (Gen 1) Type C
Total Number of USB Ports:
5
Number of USB 3.2 Gen 1 Type-A Ports:
2
Number of USB Type-C Ports:
3
USB Type-C:
Yes
USB Type-C Detail:
1 x USB 3.2 Type-C (Power Delivery + Data, 24 Pin, Gen 1, 5Gbps), 2 x USB 3.2 Type-C (24 pin, Gen 1, 5Gbps)
Number of USB Type-A Ports:
2
USB Type-A:
Yes
Number of RJ-45 Ports:
1
Network (RJ-45):
Yes
Number of HDMI Ports:
1
HDMI:
Yes
USB Power Delivery:
140W
Total Number of Ports:
7

Software

Operating System Supported:
Android, iOS, ChromeOS, Ubuntu 20.04, Ubuntu 18.04, Linux, macOS Tahoe 26.0, macOS Sequoia 15, macOS 14, macOS Ventura, macOS Monterey, macOS Big Sur, Mac OS X 10.15 Catalina, Windows 11, Windows 10

Power Description

Maximum Power Supply Wattage:
140 W

Physical Characteristics

Product Color:
Space Gray
Form Factor:
Desktop
Height:
0.60"
Width:
2"
Weight (Approximate):
3.20 oz

Miscellaneous

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