Plenty of availability after quick store check. Standard can be used in mifi
It's a mobile broadband SIM not a phone SIM.
Last posted 4 weeks ago so reposting as may help those going on holiday in August.
Three allow you to use your mobile data allowance abroad in some countries (before anyone says it NOT Spain or Greece ) here are the counties it covers,http://www.three.co.uk/Discover/Phones/Feel_At_Home
I'm in Italy so perfect for me. Using as personal hotspot as well.
Preloaded SIM from Argos now reduced so One week's internet (no big downloads/streaming) for £4.99/£6.99 isn't bad. Total 1gb or 30 days, whichever soonest.
Hope it helps at least one person.
List of countries where this works:
• Hong Kong
• Republic of Ireland
• Sri Lanka
• United States
- source: Three website, retrieved 4/8/14