Is this item compatible with iPhones?

On the USB end of your cable, yes.

is this 3rd gen like the red version?

It's appears to be a new version (1st gen) of the original one that is red; this version offers more security. From the PortaPow website as of 02/03/2020: Our Pure Data Blocker not only protects your devices from viruses and hacking from an unknown USB socket while they are being charged, but also features fully transparent casing and zero electronic components inside so you can be sure the blocker itself is secure. It is also made with a 25% lighter polycarbonate compound to be more environmentally friendly. Simply connect the data blocker in between your charging cable and the USB socket when you need to charge your phone, tablet, satnav or other device and you can be sure that only power and no data is flowing between the two. Limitations – 1) Since the pure data blocker has a zero-chip design principle, it doesn’t have the SmartCharge chip featured in our 3rd Gen design. This means charging speed may be slower with some combinations of device and charger. 2) The blocker is not compatible with extra fast charging technologies such as ‘Qualcomm Quick Charge’ ‘Samsung adaptive fast charge’ as these require data transfer to be enabled. Public USB chargers do not support these standards either so your device will charge as normal. 3) Some car USB sockets do not provide enough power to charge a device, so a dedicated USB car charger must be used.

What is the max power throughput rating of this adapter?

I believe that this gadget will handle any power that comes from the power cube/adapter. It is basically an adapter with two wires which allows the current to run through (but no wires for data). It is useful when you use a public usb outlet such as in a coffee shop, airport or the usb outlet found at the base of the lamps in many hotels. If you are in a country where you are concerns about ‘state sponsored’ security issues, place this between your own power adapter and charging cable . One cannot be too paranoid, sometimes. :)

is this the 3rd generation?

There is nothing on the device, packaging or instructions that indicates what gen it is. It does read, “For a list of all the improvements or to get in touch visit us at PortalPow.co.uk.” Hope this is helpful.

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🔐 Charge Fearlessly, Stay Secure Everywhere

TRUSTED WORLDWIDE - Endorsed by governments and hundreds of companies globally for ultimate device protection.
SEE THROUGH SAFETY - Transparent housing and chip-free design guarantee no hidden components—trust you can verify.
ABSOLUTE DATA SECURITY - Physically blocks all data transfer to eliminate juice jacking risks.
ECO CONSCIOUS PACKAGING - 25% less plastic with reusable packaging doubling as a protective carry case.
UNIVERSAL COMPATIBILITY - Works seamlessly with all popular smartphones, tablets, and navigation devices.

The PortaPow Transparent USB Data Blocker is a chip-free adapter that physically prevents any data transfer during charging, protecting your devices from juice jacking. Its transparent design ensures full visibility and trust, while universal compatibility covers all major smartphones and tablets. With eco-friendly, reusable packaging and global government endorsements, it’s the professional’s choice for secure, worry-free charging.