Equipped with an advanced USB-C E-Mark chip, this multi-monitor mini dock is compatible with USB4 hosts and devices, featuring everything you need, from triple video outputs to 10Gbps USB ports, as well as 100W Power Delivery pass-through charging. This USB-C mini dock supports DisplayPort 1.4 and Multi-Stream Transport (MST), giving you the ability to create a dual or triple 4K workstation with two HDMI and a DisplayPort output. It provides three USB SuperSpeed 10 Gbps ports (2 USB-C and 1 USB Type-A) for peripheral connectivity or downstream charging, an SD & microSD 4.0 memory card reader/writer to manage your media files, and a Gigabit Ethernet port to access a wired network. It also supports Power Delivery 3.0, providing up to 100W pass-through charging to power the connected peripherals and charge your host laptop with a USB-C power adapter.
Q: What is the maximum refresh rate supported by the HDMI port on this dock?
A: The HDMI port supports a maximum refresh rate of 144Hz at 1440p QHD resolution.
Q: What is the maximum resolution supported by this dock?
A: The maximum resolution supported is 4K (2160p).
Q: Does this dock require any driver installation?
A: No, you can use the device immediately as it doesn't require any driver installation.
Q: What kind of memory card does this dock support?
A: This dock supports SD and microSD memory cards up to 2TB.
Q: Does this dock have an ethernet port?
A: Yes, it has a Gigabit Ethernet port for wired network connectivity.
Q: How many monitors can I connect to this dock?
A: This dock supports a maximum of 3 displays.
Q: Can this device work with Macbook Air M2 with dual monitor?
A: Unfortunately not, Macs do not support MST protocol. The display output is limited to mirrored mode when connected.
A: That flickering/grainy behavior you’re seeing with your j5create JCD397 usually points to one of a few common causes. Cable or port wear – Over time, HDMI/DisplayPort connectors loosen or degrade, causing signal dropouts. Dock power limitations – If the dock or laptop is not receiving sufficient power, video output may flicker or degrade. Driver / firmware changes – Windows Updates or GPU driver updates can affect multi-monitor stability. Resolution/refresh mismatch – Running monitors at high refresh rates or mixed resolutions can cause instability. 1. Test with different cables/monitors - Swap HDMI/DP cables with known good ones. - Try a single monitor at a time → see if it stabilizes. 2. Check power supply -The JCD397 supports up to 100W PD passthrough. - Make sure your laptop’s charger is powerful enough (e.g., 90–100W). - If you’re using a lower-wattage adapter, the dock may cut power from displays intermittently. 3. Update drivers & firmware - Update your graphics drivers (Intel, NVIDIA, AMD). - Check Windows Update for USB-C / Thunderbolt drivers. 4. Resolution & refresh rate - Set monitors to 60 Hz temporarily. - Avoid running dual 4K at 60 Hz unless your laptop GPU supports it. 5. Test on another laptop - If the dock works fine elsewhere, issue is with your current laptop.
Customers are enthusiastic about the 4K60 Elite USB-C Triple-Monitor 10Gbps Mini Dock's ease of use and overall performance, with many praising its simple setup and ability to support multiple screens effectively. The compact size and USB-C connectivity are also appreciated, providing extra ports in a convenient form factor. However, some users have reported concerns about the device's heat generation, compatibility issues with display mirroring, and insufficient power delivery.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Equipped with an advanced USB-C E-Mark chip, this multi-monitor mini dock is compatible with USB4 hosts and devices, featuring everything you need, from triple video outputs to 10Gbps USB ports, as well as 100W Power Delivery pass-through charging. This USB-C mini dock supports DisplayPort 1.4 and Multi-Stream Transport (MST), giving you the ability to create a dual or triple 4K workstation with two HDMI and a DisplayPort output. It provides three USB SuperSpeed 10 Gbps ports (2 USB-C and 1 USB Type-A) for peripheral connectivity or downstream charging, an SD & microSD 4.0 memory card reader/writer to manage your media files, and a Gigabit Ethernet port to access a wired network. It also supports Power Delivery 3.0, providing up to 100W pass-through charging to power the connected peripherals and charge your host laptop with a USB-C power adapter.

This compact multi-port dock is ideal for office application, featuring everything from the essential two HDMI outputs, USB ports, Gigabit Ethernet, SD/microSD card reader, Audio Jack and an upgraded Power Delivery 3.1 specification. It comes with a mount for saving-space vertical placement and gives you the ability to connect your MacBook or other USB-C compatible laptops to a 4K monitor or TV. With USB Power Delivery 3.1 it’ll take you to a new flexible power application, you'll be able to charge your laptop and power your peripherals with a single USB-C power adapter even if your laptop only has one USB-C port. The top of the dock functions as a wireless charging pad that supports up to 15W fast charging. Access a wired network through the Gigabit Ethernet port for a fast and stable network connection. It is also equipped with a cable storage compartment which ensures an easy connection regardless of your USB-C port’s location. Power Adapter to support Wireless Charging Sold Separately.

Featuring all the ports you need, the USB-C® Dual 4K60 Mini Dock. This USB-C® mini dock supports DisplayPort™ 1.4 and Multi-Stream Transport (MST), giving you the ability to create a dual 4K workstation with two HDMI™ outputs. It includes three USB™ SuperSpeed 5Gbps ports (1 USB-C® and 2 USB™ Type-A) for peripheral connectivity or downstream charging. It also supports Power Delivery 3.0, which provides up to 100W pass-through charging to power the connected peripherals and charge your host laptop with a USB-C® power adapter.

Expand to 8 ports from one Universal USB-C connection and connect to dual monitors (one at 4K 60Hz and one at 4K 30Hz). More points of connection make up for lost ports on newer laptops and the Silicon Motion technology delivers more power and productivity. This product is compatible with the iPhone 17, 17 Pro Max and 17 Pro.
| Pros for j5create - 4K60 Elite USB-C Triple-Monitor 10Gbps Mini Dock - Space Gray | |||
|---|---|---|---|
| Ease of use, Overall Performance, Size, Connectivity, USB-C | Overall Performance, Ease of use, Size, Wireless Charging, Ports | There were no pros for this product— | Overall Performance, Connectivity, Compatibility |
| Cons for j5create - 4K60 Elite USB-C Triple-Monitor 10Gbps Mini Dock - Space Gray | |||
| Compatibility, Price, Heat, Power Delivery, Cable Length | Compatibility, Price, Noise Level, HDMI, Power Supply | There were no cons for this product— | Heat Dissipation, Cord Length |