A610 OTG Adapter designed with “Trace” concept. Utilizing the sleek design of the thickness to perfectly fit the grip of thumb while holding the compact-sized OTG Adapter. The lanyard hole constructed as a cave to prevent snaps from pulling and misplacing from daily basis. The colorful rubber outfit creates soft grips and footprint like traces for users to utilize as well as prevents accidental dropping. Designed with the extended connection Micro B head in mind to best working with various smartphones, eliminates loose or defective connections. Bead chain included for users to make it easier to carry. Four colors are available including chic green, carbon black, snow white, and hot pink to all users.