Herfair USB A to HD Adapter Cable (Charging Only) – HDMI Charging Lead 1.8m
Product description
What it is
This Herfair cable is marketed as a USB A to HDMI charging adapter. On its face, it functions as a USB 2.0 Type A to HDMI connector designed for charging only, not data transfer. The premise is to connect HD devices with built-in HD ports (like HDTVs, projectors or displays) to a power source via USB, effectively using the USB port as a charger rather than a data link.
What problem it aims to solve
If you need to supply power to an HDMI-enabled device that supports charging via USB, this lead provides a straightforward solution. It’s not for watching TV or streaming via USB, it’s specifically about charging or powering compatible HD devices from a USB source.
Practical use cases
- Charging a hard drive or other HD port-enabled device from a USB outlet or port where data transfer isn’t required.
- A long run for a power cable: 1.8 m gives some flexibility on where you position a power source relative to your HD device.
- Situations where you want a simple, shielded charging path to reduce RF/EMI noise compared with some unshielded leads.
What stands out when you use it
The shielded construction is aimed at reducing interference, which can be a consideration in setups with multiple HD devices nearby. The cable uses moulded strain relief plugs for durability and a grip-friendly texture to ease insertion and removal.
Limitations and caveats
On the down side, it’s important to note this is not a data transfer solution. If your goal is to drive content from a USB port to an HD display or vice versa, this lead won’t support that. The product text also cautions that charging from an HDMI port to USB is not suitable either, which means you can’t rely on this lead to power devices from an HD source. If you prioritise actual data connectivity between USB and HDMI, you’ll need a different setup.
Who it’s for
It could suit someone who needs a straightforward charging path for an HD device with an HDMI port, especially in environments where a longer cable helps reach a power outlet or USB power hub. It’s probably not the best choice if your aim is to enable video output or two-way power transfer between USB and HDMI devices.
Who it isn’t ideal for
If you require data transfer between USB and HDMI, or if you want to power an HD device strictly from another HDMI-enabled source, this lead won’t meet those needs. In that case, a purpose-built data-capable HDMI/USB solution would be more appropriate.
What to check before buying
- Ensure your HD device supports charging over USB and that it aligns with a USB A to HDMI charging configuration.
- Confirm the cable length (1.8 m) fits your setup and isn’t excessively long for the power source distance.
- Review that you’re using a suitable USB power source, some ports may deliver different charging levels which could affect charging speed.
- Be aware this is a charging-only solution, if you expect video output or data transmission, look for a device designed for those functions.
How it compares to alternatives
If you’re choosing between “charging-only” HDMI leads and full data-capable adapters, this Herfair lead stands out for simplicity and potential RF/EMI mitigation via shielding. It represents a lower-spec, lower-cost option for a very specific use case. For anyone needing genuine data transfer or HDMI-to-USB networking capabilities, a different approach would be more appropriate, even if it costs more or involves more complexity.
Practical example of use
Imagine you’ve got a portable HD display at a remote site. You want to keep a small external drive alive while you present, but you don’t have convenient data needs — you simply need power. Plugging this 1.8 m Herfair lead into a USB wall adaptor or power bank provides the required charge path to the HD device without tying up data lines.
Final thoughts
If your primary need is reliable charging for an HD device with an HDMI port and you value a shielded, durable lead with a decent length, this could be a sensible option. It isn’t without limitations, though, and it isn’t suitable where data transfer or HDMI-to-USB charging is involved. Depending on your setup and expectations for speed and functionality, you may find it a pragmatic, budget-conscious addition to your USB charging toolkit.
Is it worth it?
Yes, if you specifically need a charging-only HDMI-compatible lead and the 1.8 m length suits your space. Not ideal if you’re after data transfer or video output from USB to HDMI.
FAQ
- Can I use this to stream video from USB to HDMI? No, this lead is charging-only and does not support data transfer.
- Is the cable shielded? Yes, it mentions shielding to reduce RF/EMI and excess noise.
- What devices is it compatible with? It’s intended for HD devices with HDMI ports that can be powered via USB, it’s not a universal charging cable for all USB-to-HD scenarios.