Our take
A clearly specified travel dock for a single high-resolution screen and fast mixed-port data, provided the computer supports its video requirements.
A USB-C laptop or tablet user who needs one high-refresh display, three fast data ports and wired Gigabit Ethernet in a compact travel dock..
Buyers needing two displays, 4K60 from a DP 1.2 host, or an included charger.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Amazon Item details and j5create identify the same JCD392 model.
- One 4K60 HDMI output and Gigabit Ethernet are documented.
- Three downstream USB ports are rated up to 10Gbps.
What to weigh up
- Only one external display is supported.
- 4K60 requires host DisplayPort 1.4 and Alt Mode.
- The package contents do not list a power adapter.
Specifications and exact model details
The key details
| Model covered | JCD392 |
|---|---|
| Host connector | USB-C host connection; host must support DisplayPort Alt Mode and DP 1.4 for 4K60 |
| USB 3.x data ports | One USB-C and two USB-A downstream data ports, each listed up to 10Gbps |
| Installation | Compact aluminum travel dock with a fixed 5.9-inch cable |
| Hub power | Bus-powered or self-powered with a separate USB-C PD adapter; adapter not listed in the package |
| Host charging | Up-to-100W PD pass-through claim; net wattage to the host under load is not guaranteed |
Performance figures are manufacturer claims. Source checked October 15, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Choose the dock for one high-resolution display and a fast mixed-port connection set
JCD392 is a compact travel dock for a USB-C laptop or tablet that needs one external HDMI display, wired networking and several fast peripheral connections. The manufacturer lists one HDMI output, Gigabit Ethernet, two USB-A ports and a USB-C data port. The three downstream USB ports are rated up to 10Gbps. That mix can suit a mobile workstation where the host has few connections and the user wants a display, network cable, mouse or keyboard and fast storage from one attachment. Its benefit is a documented port map: buyers can compare the single HDMI connection and three USB data ports directly with what their desk requires instead of relying on the six-in-one label alone.
Check the computer's video capability before relying on 4K60
The HDMI output supports up to 4K at 60Hz only when the host supports DisplayPort 1.4 over USB-C. j5create says the USB-C host must support DisplayPort Alt Mode and USB Power Delivery. With a DisplayPort 1.2 host, the maximum drops to 4K30. The product supports one display, so it is not a dual-monitor dock even though it also has Ethernet and several USB ports. Check the exact laptop port specification and the monitor/cable before selecting a mode. A USB-C socket that carries only data or charging does not meet the documented display requirement. If you mostly use office displays at 1080p or 1440p, the dock's HDMI range may be more than you need; if you need two separate screens, this is the wrong port layout.
Use the three 10Gbps connections with the right expectations
The JCD392 provides one USB-C and two USB-A downstream data ports, each listed up to 10Gbps. This is a useful distinction from hubs that offer more ports but lower advertised data rates. The rate is a port specification, not a measured result with three drives transferring simultaneously. Actual throughput depends on the host, connected device, cable and workload. The manufacturer says a power adapter can be connected through the PD port to help with high-powered devices. If bus-powered storage will be attached, use external power as recommended and avoid removing it during a copy. The product page does not publish a shared-bandwidth chart for every active combination, so treat the port ratings as interface ceilings rather than a promise of simultaneous maximum transfer.
Plan the power-delivery path separately from the data path
The USB-C port supports up to 100W Power Delivery pass-through when connected to a USB-C power adapter. This gives the dock a charging role while the laptop uses HDMI, Ethernet and the data ports, but the charger is not listed in the product's package contents. Bring a compatible adapter and check the laptop's power requirements. Up to 100W is the maximum pass-through rating; it is not a measured battery-charging speed for every host or a guarantee that 100W reaches a device under every workload. The port's data role and charging role are both stated, which helps distinguish it from a charging-only inlet. If the setup does not need pass-through charging, the dock can still provide data and display expansion, subject to the host requirements.
Match its short cable and exact model to the travel setup
The dock has a 5.9-inch attached host cable and an aluminum space-gray enclosure, with a listed weight of 3.06 ounces. A fixed short cable keeps the hub close to a laptop but offers little placement flexibility. The attached cable and compact body are easy to pack, while a desk with a raised stand may need a different cable reach. Amazon maps B09Y8QR3GY to JCD392 in its Item details, and the manufacturer page matches that model and feature set. Use the direct tagged ASIN destination and check the JCD392 label in the offered product details. This review uses the current product page and manufacturer specifications, not hands-on testing or buyer-review conclusions, and it makes no claim about current price or inventory.
Compare for your needs
Find the USB hub that fits you.
Tell us what matters. We’ll help you weigh the options.
Before you buy
Does JCD392 support two displays?
No. The manufacturer lists one display.
Can a DP 1.2 host deliver 4K60?
No. The manufacturer limits DP 1.2 to 4K30.
Is a charger included?
The package list does not include one.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- j5create official JCD392 product page ↗ — checked October 15, 2026.
- j5create official JCD392 page; ports, display modes, power and host requirements ↗ — checked October 15, 2026.
- Amazon product detail; exact JCD392 model and ASIN mapping ↗Paid link · We may earn a commission. — checked October 4, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.