If you travelling overseas best you leave your laptop or tablet at home.
You can take your smartphone into the cabin, but any larger electronic items need to be checked into the hold.
The airlines say they have credible intelligence that somebody with a terrorist mindset might smuggle one of these devices on board containing explosives to bring down an US or UK bound flight.
The ban only applies on direct, inbound flights to UK airports from Turkey, Lebanon, Jordan, Egypt, Tunisia and Saudi Arabia.
Passengers with electronic items larger than the specified measurements will be required to place them in their hold luggage and check these bags in before going through security.
Take a listen to Linden Birns, MD: of Plane Talking, sharing his views with John Maytham and how it will affect South Africans: