Where to buy an adapter in Thailand?
In every bigger Thai city there are computer center where shops sells adapter or plugins. You can also turn to the manufacture for adapter in Thailand. Most major big manufactures have offices in Thailand. If you can not find a shop in your city you should turn to Lazada in Thailand. If you can not find an adapter in Thailand you could try eBay online. Just be careful when you order from eBay you might want to check out the plugin so it match the Thai version. Also Lazada have a deal with Thai customs and not all orders have that on eBay. Never click on links or SMS that comes from Lazada or eBay use the apps instead to check where you items are, check here for more internet security in Thailand.