3.0. Minimalist Stylishly Designed, Iron Fast USB 3.0 Offers All Benefits of Standard Iron Stick USB with Benefit of USB 3.0 Technology, Allowing for Greater Read Write Speeds in Small Form Factor. Promotional USB Stick Can be Laser Etched with Logo or Slogan Making for an Effective Branding Solution for Just About Any Organisation. Encapsulated Insert Flash Memory is Also Very Robust Being Both Water, Shock Dust Resistant. Minimum Quantity: 50.