[TP-LINK]

450Mbps Speed

2 years global warranty

URL is English version Firmware upgrades + Manual !!
http://www.tp-link.sg/download/TL-WR940N.html#Firmware
(download the file, extract .bin and upload it to the last tab on your left)

 
*Plug and / case is KR type.
All frequency and the voltage rating is the same
It can also be used without problems in Singapore