RCT SD-4 USB-C 4-in-1 Hub with 4K HDMI, Gigabit LAN & 100W PD

At a Glance

• Expands one compatible USB-C port into four connections
• HDMI output supporting up to 4K at 60Hz
• Gigabit Ethernet supporting up to 1000Mbps
• USB 3.0 Type-A port supporting data rates up to 5Gbps
• USB-C Power Delivery input supporting up to 100W
• USB Type-A power output up to 4.5W
• Compact aluminium housing
• Lightweight 45g design
• Suitable for compatible notebooks, tablets and mobile devices
• Designed for office, home, study and travel use

Short Description

The RCT SD-4 is a compact USB-C 4-in-1 hub featuring HDMI output up to 4K at 60Hz, Gigabit Ethernet, a 5Gbps USB 3.0 Type-A port and USB-C Power Delivery passthrough up to 100W.

Its lightweight aluminium design provides essential display, network, peripheral and charging connectivity through one compatible USB-C host port.

Why Choose This RCT

The RCT SD-4 combines four commonly required connections in one compact USB-C hub.

Its HDMI output supports compatible 4K displays at up to 60Hz, while the Gigabit Ethernet port provides a wired-network connection for devices without a built-in Ethernet port.

The USB 3.0 Type-A port supports compatible storage devices and everyday peripherals at data-transfer rates up to 5Gbps.

USB-C Power Delivery passthrough allows a compatible notebook, tablet or mobile device to be charged while the hub is connected.

At only 45g, the RCT SD-4 is convenient for office desks, home workstations and mobile use.

Recommended Use Cases

• Notebook port expansion
• Home-office workstations
• Business and office use
• Hybrid and remote working
• External monitor connections
• 4K display output
• Wired Gigabit Ethernet
• Connecting USB storage devices
• Keyboards and mice
• USB-C notebook charging
• Presentations
• University and study setups
• Travel connectivity

Product Description

The RCT SD-4 Compact USB-C 4-in-1 Hub expands a compatible USB-C host connection with HDMI, Gigabit Ethernet, USB Type-A and USB-C Power Delivery.

The HDMI output supports resolutions up to 3840 × 2160 at 60Hz when connected to a compatible host device, HDMI cable and display. It is also backward compatible with supported 1080p and 720p resolutions.

An integrated RJ45 Ethernet port supports wired-network speeds up to 1000Mbps and is backward compatible with supported 100Mbps and 10Mbps networks.

The USB 3.0 Type-A port supports compatible storage devices and peripherals at data-transfer rates up to 5Gbps. It can also provide up to 4.5W of power to supported USB devices.

The USB-C Power Delivery input supports up to 100W passthrough charging when used with a compatible USB-C Power Delivery charger, cable and host device.

Its aluminium housing measures 280 × 28.5 × 15mm and weighs only 45g.

Key Features

• Compact USB-C 4-in-1 hub
• Integrated USB-C host cable
• Four expansion connections
• One HDMI output
• HDMI resolution up to 3840 × 2160
• Supports compatible 4K output at up to 60Hz
• Backward compatible with 1080p and 720p
• One RJ45 Gigabit Ethernet port
• Network speeds up to 1000Mbps
• Backward compatible with 100Mbps and 10Mbps Ethernet
• One USB 3.0 Type-A port
• USB data-transfer speeds up to 5Gbps
• USB Type-A power output up to 4.5W
• One USB-C Power Delivery input
• Power Delivery passthrough up to 100W
• Aluminium housing
• Compact portable design
• 45g product weight
• Windows and macOS compatibility

Specifications

Ports & Connectivity

The RCT SD-4 provides:

• 1 × HDMI output
• 1 × RJ45 Gigabit Ethernet port
• 1 × USB 3.0 Type-A port
• 1 × USB-C Power Delivery input

The integrated USB-C cable connects the hub to the host computer, tablet or mobile device.

HDMI Display Support

The HDMI output supports:

• 3840 × 2160 at up to 60Hz
• Supported 1920 × 1080 output
• Supported 1280 × 720 output

Actual display resolution and refresh rate depend on:

• Host device
• Host USB-C port
• DisplayPort Alternate Mode support
• Graphics hardware
• Operating system
• HDMI cable
• Connected monitor, television or projector

The host USB-C port must support video output for the HDMI connection to function.

USB Connectivity

The USB 3.0 Type-A port supports:

• Data-transfer rates up to 5Gbps
• Compatible flash drives
• External storage devices
• Keyboards
• Mice
• Card readers
• Other supported USB peripherals
• Power output up to 4.5W

Actual performance depends on the host device, connected peripheral and available USB bandwidth.

Ethernet Connectivity

The RJ45 Ethernet port supports:

• 1000Mbps Gigabit Ethernet
• 100Mbps Ethernet
• 10Mbps Ethernet

Actual network performance depends on the host device, network equipment, Ethernet cable and local or internet connection.

Power Delivery

The USB-C Power Delivery input supports up to 100W passthrough charging.

A compatible USB-C Power Delivery charger and cable are required. The connected host device must also support charging through its USB-C port.

The hub consumes some power during operation, so the charging power received by the host device may be lower than the connected charger’s rated output.

The USB-C Power Delivery port is intended for charging input and is not listed as an additional USB-C data port.

Compatibility

Suitable for selected compatible:

• USB-C notebook computers
• USB-C tablets
• USB-C mobile devices
• USB-C desktop computers
• HDMI monitors
• HDMI televisions
• HDMI projectors
• Gigabit Ethernet networks
• USB storage devices
• USB keyboards and mice
• USB-C Power Delivery chargers

Important Compatibility Notes

• A USB-C connector does not automatically guarantee video output, data connectivity or Power Delivery charging.
• HDMI output requires a USB-C host port that supports video output, normally through DisplayPort Alternate Mode.
• USB-C ports limited to charging or data may not support HDMI output.
• 4K at 60Hz requires compatible host hardware, graphics support, HDMI cable and display.
• Lower resolutions or refresh rates may be used when the connected equipment does not support 4K at 60Hz.
• USB-C Power Delivery requires a compatible charger, charging cable and host device.
• A USB-C charger is not included.
• The 100W rating refers to the hub’s maximum supported Power Delivery input.
• The host device may receive less than 100W because the hub requires power to operate.
• The USB-C Power Delivery port is not specified for data transfer.
• Actual USB and Ethernet performance depends on the complete connected system.

What’s in the Box

• RCT SD-4 Compact USB-C 4-in-1 Hub

Warranty

One-Year RCT Manufacturer Carry-In Warranty

Sustainability

The four-port design combines display, wired-network, USB peripheral and charging connectivity in one reusable hub.

Its aluminium housing is designed for repeated everyday use when handled and stored correctly.