The ground prong is a rarity among UK to US travel adapters available in the US. If you need to plug in your UK device don't risk not having the ground prong. In my case it was an Apple Thunderbolt monitor that needed to 'see' the unit was properly grounded before I could convert the cable to the US one. Silly Apple and their smart people.
๏ปฟ
VINTAR EU To US Plug Adapter 3-Pack For Easy Travel: Europe To USA Converter For Spain, France, And More, Compatible With Type C/E/F Plugs - European To US Power Adapter Solution
11 Review
Dorhea LM2596 DC-DC Buck Converter Step-Down Regulator 4.0-40V To 1.25-37V DC 36V To 24V To 12V To 5V Volt Power Supply Module With LED Voltmeter Display Compatible With Car Motor Buck
16 Review
EXuby Digital Converter Box For TV With RF/Coaxial And RCA Cable For Recording And Viewing Full HD Digital Channels Free (Instant Or Scheduled Recording, 1080P HDTV, HDMI Output, 7 Day Program Guide)
12 Review
HOMELYLIFE 600W High Power Voltage Reducer DC 48V 60V 72V Step Down To DC 12V 50A Buck Converter Waterproof Module Car Truck Power Regulator Transformer
12 Review
Premium Harman Kardon AVR-154 Home Theater Receiver - Discontinued by Manufacturer
11 Review
Denon AVR-2113CI Networking Home Theater Receiver: AirPlay, Powered Zone 2 | Discontinued by Manufacturer
9 Review
Amp Up Your Audio Experience With The Aimpire AD10 Mini USB DAC CSS XMOS XU208 ES9018K2M OPA2134 Audio Amplifier Decoder
10 Review
Neoteck Portable 3.5Mm Headphone Amplifier With Bluetooth 5.0 Receiver, Two-Stage Gain Switch, 16-150 Ohm HiFi Earphone Amp, Aluminum Matte Surface
34 Review