Start with the ports you actually need
A travel card reader only earns its place in your bag if it covers the connections your devices require. The ProMaster USB-C Hub with Dual SD Card Reader, HDMI, USB Ports & Power Delivery combines a dual-slot UHS-II SD reader, an HDMI-A output, two USB-C ports, one USB-A port and 100W USB-C Power Delivery in a single hub with a permanently attached USB-C SuperSpeed+ cable.
That combination is useful when your laptop has limited ports and you need to copy cards, connect a monitor and charge at the same time. Before you leave, check that your laptop, tablet or phone has a USB-C port that supports the hub’s data and charging functions. The supplied information does not list specific device models or operating systems, so treat compatibility as something to confirm with your own hardware rather than assume.
What the hub adds to a travel kit
- ProMaster USB-C Hub with Dual SD Card Reader, HDMI, USB Ports & Power Delivery: Dual UHS-II SD card slots support reading and writing to two SD cards simultaneously, with speeds up to 380MB/s for V90 UHS-II SD cards. Dual slots let you copy from one card to another or back up a shoot without carrying a separate reader.
ProMaster USB-C Hub with Dual SD Card Reader, HDMI, USB Ports & Power Delivery - ProMaster USB-C Hub with Dual SD Card Reader, HDMI, USB Ports & Power Delivery: The hub includes an HDMI-A port, two USB-C outputs, one USB-A port and a 100W USB-C Power Delivery port. One connection can cover card offloads, a monitor and charging, which reduces the number of adapters you pack.
A practical offload routine for travel
The hub’s dual slots are designed for on-the-go backups without internet or cloud access. The exact steps depend on your computer and software, but the order below keeps the process predictable.
- Connect the hub to your USB-C device: Plug the attached USB-C SuperSpeed+ cable into a USB-C port on your laptop or tablet. The cable is permanently attached, so there is no separate cable to lose.
- Insert your SD cards: Load the card you want to copy and, if you are backing up, a second card into the other slot. The hub can read from and write to two SD cards simultaneously.
- Copy files using your usual software: Use your computer’s file browser or photo software to copy from the source card to the destination. The supplied information does not name specific backup software, so use the tool you already trust.
- Add power if you need it: Connect a charger to the 100W USB-C PD port to charge your laptop or tablet while the hub is in use. The supplied information states that pass-through charging works without interrupting file transfers or device connections.
- Connect a monitor when you need a bigger screen: Use the HDMI-A port to connect an external monitor. The supplied information does not specify supported resolutions or refresh rates, so check your display’s requirements before relying on it for color-critical work.
Where the dual slots change your backup plan
Photographers who shoot with dual-card cameras often return from a trip with pairs of cards holding the same images. The ProMaster hub’s two SD slots let you copy from one card to another directly, which is the kind of in-field backup the product is designed for. That can be faster than carrying a laptop and a separate single-slot reader, and it does not require an internet connection or cloud service.
Keep in mind that the hub is an SD card reader. CompactFlash, CFexpress or microSD cards would need their own adapter or reader, and the supplied information does not confirm support for those formats. If your camera uses anything other than full-size SD cards, plan accordingly.
Power delivery and port use in practice
The hub’s 100W USB-C Power Delivery port is rated for rapid charging of laptops, tablets or smartphones. The supplied information does not specify how much power is available to the other ports when a charger is connected, so treat the 100W figure as the hub’s charging input rating rather than a guaranteed output to every device.
- Charging while transferring: The hub is described as supporting pass-through charging without interrupting file transfers or device connections. That makes it possible to top up a laptop during a long offload.
- USB-A for peripherals: The single USB-A port is intended for peripherals such as a mouse, keyboard or card reader. The supplied information does not list data speeds for this port.
- Two USB-C outputs: The hub provides two USB-C outputs for data and charging. The supplied information does not break down power or speed for each port individually.
- HDMI-A for an external display: The HDMI-A port connects an external monitor. Resolution and refresh rate support are not stated in the supplied information, so confirm with your display setup if that matters to you.
What to check before you rely on it
The hub’s permanently attached USB-C cable is a travel convenience, but it also means you cannot swap to a longer cable if your laptop sits far from your cards. Check that the cable reaches comfortably in your usual working position.
The supplied information does not include operating instructions, supported operating systems or a list of compatible devices. It also does not state whether the hub requires external power for card reading or whether it works bus-powered. Those are questions to resolve with the retailer or manufacturer before a trip where the hub is your only card reader.
At a catalog price of USD 35.17, the ProMaster hub is a lower-cost way to add dual SD slots, HDMI and USB expansion than buying separate adapters. The trade-off is that its performance claims depend on using V90 UHS-II SD cards to reach the stated 380MB/s; slower cards will transfer more slowly.
