China and Hong Kong 8 Days Data SIM (Unlimited Data Usage) The SIM card is valid for 8 days from the date of activation. Expiry Date 30/06/2019. 3-in-1 SIM Card (Nano/Micro/Standard). Coverage: all provinces in Mainland China and Hong Kong. Once your data usage in Mainland China and Hong Kong reaches 2GB Fair Usage level, the upload/download speed would be reduced and restricted (but not below 128kbps) and tethering and Peer-to-Peer services would not be available. Supports tethering and shares network with other connected devices; Top up: HK100/8days/2GB.