Today only, Newegg offers the SanDisk 256GB Ultra USB 3.0 Flash Drive, model no. SDCZ48-256G-U46, for $69.99. Checkout via Newegg's mobile site, iPhone app, or Android app, and apply coupon code "MBL160302A" to cut that to $49.99. With free shipping, that's the lowest total price we could find by $10. It features transfer speeds of up to 100MB/s.