70 USD
http://lumiaconversations.microsoft.com/2015/03/19/lumia-430-dual-sim/
Specifications
Operating system Widows Phone 8.1 with Lumia Denim
Display 4-inch WVGA (800 x 480, 15:9), 235 PPI
Battery 1500 mAh replaceable
Processor 1.2 GHz dual-core Qualcomm® Snapdragon™ 200 processor
Main camera 2 MP, Fixed focus
Front-facing camera VGA 0.3 MP
Memory 8 GB + 30 GB OneDrive***, MicroSD up to 128 GB
RAM 1GB
Dimensions 120.5 x 63.19 x 10.63 mm
127.9g