j5create JCA399 USB-C to HDMI 4K 144Hz Adapter with USB 3.2 and 100W Power Delivery White JCA399-N
Brand:
J5CREATE
j5create JCA399 USB-C to HDMI 4K 144Hz Adapter with USB 3.2 and 100W Power Delivery White JCA399-N
€61.8 inc. VAT
JCA399-N
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j5create JCA399 — USB-C to HDMI 4K 144Hz Adapter with USB 3.2 and 100W PD
HDMI 4K 144HzUSB 3.2 · 5 Gbps100W PD Pass-Through20 cm
The j5create JCA399 is a compact 3-in-1 USB-C multiport adapter that adds an HDMI display at up to 4K 144Hz, a USB 3.2 Type-A port and 100 W USB-C Power Delivery pass-through to a single USB-C port. Part number JCA399-N, it connects through a short 20 cm cable and works with USB-C devices that support DisplayPort Alt Mode, including MacBook, iPad, iPhone 15 and Steam Deck. Ideal for a travel-light setup that still drives a high-refresh monitor while charging. Typically in stock with fast delivery across Cyprus.
Compatibility — read before buying
The host USB-C port must support DisplayPort Alt Mode. Reaching 4K at 144Hz requires the host to support DisplayPort 1.4 with DSC; without DSC the maximum is 4K at 60Hz. Power Delivery is pass-through only — connect your own USB-C charger to the adapter to power the host (input up to 100 W; up to about 90 W / 20 V-4.5 A reaches the device). The USB 3.2 Type-A port is data only (up to 5 Gbps).
Key Features
HDMI up to 4K 144Hz
Drives a single HDMI display at up to 3840×2160 / 144Hz via DisplayPort 1.4 with DSC (4K / 60Hz on hosts without DSC) — great for high-refresh monitors and TVs.
USB 3.2 Data + 100W Charging
A USB 3.2 Gen 1 Type-A port (up to 5 Gbps) for drives and peripherals, plus a USB-C Power Delivery pass-through that charges your laptop at up to 100 W while connected.
Pocket-Sized for Travel
A compact white adapter (75 × 11 × 45 mm, 31.5 g) on a short 20 cm cable — easy to carry with a MacBook, iPad or Steam Deck.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
The JCA399 suits anyone who wants one small adapter to add a high-refresh HDMI monitor, a USB 3.2 port and 100 W charging to a USB-C laptop or handheld. The 4K / 144Hz headline needs DSC on the host; without it you still get a solid 4K / 60Hz. If you need Ethernet or several extra ports rather than just one, a full USB-C docking station is a better fit; if you only ever need video out, a plain USB-C to HDMI adapter is cheaper.
Buyer’s Guide
Buy it if
You want one compact adapter to add an HDMI display up to 4K 144Hz, a 5 Gbps USB 3.2 port and 100 W pass-through charging to a USB-C laptop or handheld.
Skip it if
Your host USB-C port lacks DisplayPort Alt Mode, or you need more than one extra USB port or Ethernet — this has a single USB-A port and one HDMI.
Also consider
A full USB-C docking station for Ethernet and multiple ports, or a plain USB-C to HDMI adapter if you only need video output.
Features - J5CREATE - JCA399-N
Colour
white
Length
0.2m
More Details
Product Code
CL03014
EAN Code
4712795088205
Manufacturer
J5CREATE