Save up to $160 on this 400GB MicroSDXC card from SanDisk! With 160 MB/s read and 90 MB/s write speeds, you’ll be transferring files to and from the card in a jiffy. SanDisk is known for offering good quality products at fair prices and on top of that, Amazon offers free tech support with this deal. Customers can get free tech support over the phone from the retailer if their product doesn’t work as expected.