MOMAX 1-World+ Flow 4-Port Travel Charger With Built-In USB-C Cable 35W UA21 [Hong Kong Official Product]｜MOMAX Hong Kong Official Product

AC100-250V ~ 50/60Hz 10A 2500W
max.

Product Introduction

MOMAX 1-World+ Flow 4-Port Travel Charger With Built-In USB-C Cable 35W UA21 [Hong Kong Official Product] is a travel adapter product. The official specifications list: Rated input voltage range AC100-250V ~ 50/60Hz 10A 2500W
max.; USB-A1/A2 12W max (5V⎓2.4A).

Key Features、Plug In. Power Up. Anywhere.

When choosing a travel adapter, first check the socket standard at your destination, the total power consumption of the devices you will bring, and whether you need USB-A for older devices; once these three factors are determined, the wattage and number of ports will naturally be narrowed down.

MOMAX 1-World+ Flow 4-Port Travel Charger With Built-In USB-C Cable 35W UA21 [Hong Kong Official Product] (Product Image)

Six Key Highlights

Rated input voltage range

The input specifications determine the charging speed; chargers with PD support recharge noticeably faster.

Impact on actual use: AC100-250V ~ 50/60Hz 10A 2500W
max.

• USB-A1/A2：12W max (5V⎓2.4A)
• USB-C1/C2：15W max (5V⎓3A)

USB-A1/A2 output

The output specifications determine which types of devices can be fast-charged; the protocols must match for fast charging to be activated.

Impact on actual use: 5V⎓3A + 15W + 2.4A

• Rated input voltage range：AC100-250V ~ 50/60Hz 10A 2500W
max.
• USB-A1/A2：12W max (5V⎓2.4A)

USB-C1/C2 output

The output specifications determine which types of devices can be fast-charged; the protocols must match for fast charging to be activated.

Impact on actual use: 5V⎓3A + 15W + 3A

• Rated input voltage range：AC100-250V ~ 50/60Hz 10A 2500W
max.
• USB-A1/A2：12W max (5V⎓2.4A)

Total DC output

The output specifications determine which devices can be fast-charged; the protocol must match before fast charging will activate.

Impact on actual use: 35W

• Rated input voltage range：AC100-250V ~ 50/60Hz 10A 2500W
max.
• USB-A1/A2：12W max (5V⎓2.4A)

Materials

The materials affect durability and heat dissipation.

Impact on actual use: ABS + PC

• Rated input voltage range：AC100-250V ~ 50/60Hz 10A 2500W
max.
• USB-A1/A2：12W max (5V⎓2.4A)

Dimensions

The dimensions affect portability and placement; pay attention to the length and width when traveling or putting it in a bag.

Impact on actual use: 84.7 x 59.3 x 53.1 mm

• Rated input voltage range：AC100-250V ~ 50/60Hz 10A 2500W
max.
• USB-A1/A2：12W max (5V⎓2.4A)

What's in the Box

The following is the packaging content for Hong Kong official stock. Actual accessories are subject to the shipment batch; if you have any questions, please confirm with us before placing an order.

• The packaging contents are subject to the shipment batch; if you need to confirm any individual accessories, please contact us before placing an order.
• Hong Kong official stock; warranty coverage is subject to this product page and the distributor's terms.

Applicable Scenarios

MOMAX 1-World+ Flow 4-Port Travel Charger With Built-In USB-C Cable 35W UA21 [Hong Kong Official Stock] is suitable for the following situations:

• Key Features

Why choose this model

• Rated input voltage range：AC100-250V ~ 50/60Hz 10A 2500W
max.
• USB-A1/A2：12W max (5V⎓2.4A)
• USB-C1/C2：15W max (5V⎓3A)
• USB-C3：35W max 5V⎓3A, 9V⎓3A, 15V⎓2.33A, 20V⎓1.75A)
• USB-C3+USB-C1/C2/A1/A2：20W + 5V⎓4A
• USB-A1/A2 output：5V⎓3A + 15W + 2.4A

Full Specifications

Compare Models in the Same Series

The table below shows the actual specifications of this model. When making your purchase, compare them with the requirements of your device.

FAQ

Q: Before buying, how do I know if it will fit the sockets at home?
A: Check the socket area: twin sockets side by side, a switch directly above, a raised surround, or a position near a wall edge. A full-size plug body may hit the surround, meaning it may not sit flush and could also cover the switch. Measure the available space before buying.

Q: The plug will not go in—is the product faulty?
A: No. There is nothing wrong with the plug; it is the socket placement. Any full-size plug may get blocked in these positions. Use a locally safety-certified power board to separate the plugs and it will work.

Q: What should I look out for when using a power board?
A: Choose one with overload protection and local safety certification (e.g. SAA/RCM certification in Australia/New Zealand). Plug the adapter directly into the power board, never daisy-chain power boards, and leave enough space for heat dissipation.

Q: I would rather not use a power board—are there any alternatives?
A: Consider a slim GaN charger. It is much smaller and can fit in tight socket spaces. Keep travel adapters for use when travelling, as hotel sockets are generally wider and less likely to cause clearance issues.

Q: Before buying, how do I know it fits my sockets at home?
A: Look at the socket spot: twin sockets side by side, a switch directly above, a raised surround, or a position near a wall edge - a full-size plug body will hit the surround and may not sit flush, and can cover the switch. Measure the space before buying if unsure.

Q: The plug will not go in - is the product faulty?
A: No. The plug itself is fine; it is the socket placement - any full-size plug jams in those spots. A certified power board with space for each plug solves it.

Q: Anything to watch out for with power boards?
A: Choose one with overload protection and local safety certification (e.g. SAA/RCM in Australia/New Zealand); plug the adapter directly into the board, never daisy-chain boards, and leave room for heat dissipation.

Q: I would rather not use a power board - any alternatives?
A: Consider a slim GaN charger - much smaller and fits tight spots; keep the travel adapter for trips, where hotel sockets usually have more room.

Q: Which setting should I use when travelling to Japan/USA/Australia/UK?
A: Slide out the setting and check the label: USA setting = Japan/USA (flat pins); AUS setting = Australia/New Zealand/China mainland (angled pins); UK setting = UK/Hong Kong/Singapore (three rectangular pins); EU setting = Europe/South Korea (round pins). Slide out only one setting at a time. Extend it before plugging in, and retract it after unplugging.

Q: Is this also a voltage converter?
A: No. A travel adapter only changes the shape of the pins; it does not change the voltage. Using a 110V-only appliance (such as some US hair dryers) in a 220V region may burn it out. Most modern phone, computer and camera chargers support 100–240V (check the small print on the device), so confirm before use.

Q: Can the AC outlets and USB ports be used at the same time?
A: Yes, each port has independent power delivery, but the combined load must not exceed the total wattage limit marked on the device. When using the high-wattage USB-C port to charge a laptop, it is recommended to plug other high-power loads into separate sockets. Refer to the specifications for the particular model for detailed combinations.

Q: Why are there two fuse slots on the back of the unit?
A: One slot contains the fuse in use, while the other is for the SPARE FUSE. If the fuse blows due to an overload, use a small screwdriver to open the compartment and replace it with the spare fuse. If it blows again, the load is too high—do not use a higher-wattage fuse.

Q: Can I use this at home in Hong Kong every day?
A: Depends on the model: the back has a UK pin mode that can be plugged into Hong Kong sockets for occasional use; however, travel adapters are designed for trips, and some models have a sticker on the back stating “Not designed for connection to Hong Kong power sockets” — for long-term home use, please use a regular charger.

Q: Can I take it on a plane?
A: Yes. A travel adapter has no battery, so it is fine in both cabin and checked luggage; note that it is different from an “external battery/power bank” — those contain batteries and can only be carried in hand luggage, not checked luggage.

Q: Which slider for Japan / the US / Australia / the UK?
A: Slide per the label: USA = Japan/US (flat pins); AUS = Australia/NZ/mainland China (angled pins); UK = UK/Hong Kong/Singapore (three rectangular pins); EU = Europe/Korea (round pins). Slide one at a time; slide out before unplugging.

Q: Is this also a voltage converter?
A: No. A travel adapter only changes the pin shape, not the voltage - a 110V-only appliance (like some US hair dryers) will burn out on 220V. Modern phone/laptop/camera chargers are mostly 100-240V universal (check the fine print on the charger) - confirm before use.

Q: Can the AC socket and USB ports be used at the same time?
A: Yes - each output is independent, but the total must stay under the rated maximum printed on the body. When charging a laptop on the high-wattage USB-C port, keep other heavy loads off. See the model spec table for combinations.

Q: Why are there two fuse slots on the back?
A: One is the active fuse, the other is the SPARE FUSE - if it blows from overload, swap in the spare with a small screwdriver. If the new one blows too, the load is over the limit - do not fit a higher rating.

Q: Can I use it daily at home in Hong Kong?
A: Depends on the model: with a UK pin mode it fits Hong Kong sockets for occasional use; but travel adapters are designed for trips, and some models carry a sticker saying they are not designed for Hong Kong mains sockets - for everyday home use, use a regular charger.

Q: Can I take it on a plane?
A: Yes. A travel adapter has no battery, so it is fine in both cabin and checked luggage. Note the difference from power banks - those contain batteries and must go in cabin baggage only.

MOMAX 1-World+ Flow 4-Port Travel Charger With Built-In USB-C Cable 35W UA21 [Hong Kong Official Stock]: Choose according to your device

Tell us what devices you’ll be charging and how many you’ll use simultaneously, and we’ll help confirm whether this model is sufficient.

MOMAX | Local Support