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This User Manual covers setup, features, compatibility, and specifications for the Satechi USB-C Slim Dock for 24" iMac (ST-UCISDS / ST-UCISDB).

What's In The Box

USB-C Slim Dock for 24" iMac, Type-C to Type-C connection cable, thermal pad, extra SSD silicone plug, User Manual.

Functions

1. SSD Card Enclosure
2. USB-C Data Port
3. USB-A Port
4. SD & Micro SD Card Reader
5. USB-C Connector
6. 2x USB-A 2.0 Ports

Product Overview

Sits under the stand of a 24-inch iMac and adds the ports Apple left off it, plus a built-in M.2 enclosure so you can add your own SSD instead of hanging an external drive off the back. You get a 10 Gbps USB-C data port, a 10 Gbps USB-A data port, two USB 2.0 ports on the back for a keyboard, mouse or dongle, and SD plus Micro SD card readers, all from one USB-C cable.

Setup

The USB-C Slim Dock for 24" iMac is plug-and-play, no drivers or software required.

1. Connect to a computer: Run the included Type-C to Type-C cable from the port marked HOST on the dock to one of the Thunderbolt or USB-C ports on your iMac.

2. Connect your devices: Connect your drives, peripherals and memory cards to the dock's ports.

Installing an SSD

1. Unplug the dock before you install or remove an SSD.
2. Lift the backside cover off the dock, then apply the included thermal pad to the bottom of the SSD. Make sure the pad is properly aligned.
3. Insert the SSD faceup at a 45 degree angle. Once it is seated, push down on the SSD and use the silicone pin to hold it in place.
4. Magnetize the cover back onto the dock.

Ports and Features

Parts labeled diagram of the USB-C Slim Dock for 24" iMac with 6 labeled components.

1. SSD Card Enclosure: The enclosure built into the underside of the dock. It takes one M.2 SSD, NVMe or SATA, up to 2TB, and runs at up to 10 Gbps. The SSD is not included.
2. USB-C Data Port: USB-C data port for drives and peripherals, up to 10 Gbps. It does not support charging or video output.
3. USB-A Port: USB-A data port for drives and peripherals, up to 10 Gbps. It does not support charging, and it does not work with CD readers including the Apple USB SuperDrive.
4. SD & Micro SD Card Reader: Card readers for SD and Micro SD cards at UHS-I speeds.
5. USB-C Connector: The port marked HOST on the back of the dock. Run the included Type-C to Type-C cable from here to a Thunderbolt or USB-C port on your iMac. This single connection powers the dock and carries all of its data.
6. 2x USB-A 2.0 Ports: Two USB 2.0 data ports on the back of the dock, up to 480 Mbps, for keyboards, mice, dongles and other low-speed accessories. They do not support charging, and they do not work with CD readers including the Apple USB SuperDrive.

Features

- Built-in M.2 enclosure for an NVMe or SATA SSD, up to 2TB and up to 10 Gbps
- 10 Gbps data on both the USB-C port and the front USB-A port
- Two extra USB 2.0 ports on the back for keyboards, mice and dongles
- SD and Micro SD card readers at UHS-I speeds
- Sits under the iMac stand, so it uses no extra desk space
- Plug and play, no drivers or software required

Important Limitations

The USB ports are not designed for charging, only for device syncing, data transfer and USB peripherals. Charge your devices from the iMac's own ports or from a wall charger instead.

The USB-C data port will not support video output. The dock does not carry a display signal at all. Drive an external monitor from the iMac's own ports.

The USB-A ports will not work with CD readers, including the Apple USB SuperDrive. This applies to the 10 Gbps USB-A port on the front and to both USB 2.0 ports on the back.

The SSD enclosure is limited to 2TB. It takes M.2 NVMe or SATA drives up to 2TB, at up to 10 Gbps. The SSD is not included.

The dock fits the 2021 and 2023 24-inch iMac only. It is sized for those models and will not fit other iMacs.

Specifications

Model: ST-UCISDS (Silver) / ST-UCISDB (Blue)
Connector: USB-C, with a Type-C to Type-C cable included
Ports & Speeds:
1x USB-C data port: up to 10 Gbps, no charging and no video output
1x USB-A data port: up to 10 Gbps, no charging and no CD readers
2x USB-A 2.0 ports: up to 480 Mbps, no charging and no CD readers
1x SD and Micro SD card reader: UHS-I speeds
1x M.2 SSD enclosure: NVMe or SATA, up to 2TB, up to 10 Gbps
1x USB-C HOST port for the included Type-C to Type-C cable

Certifications

FCC, CE, WEEE, ICES-3 / NMB-3 (Canada)