Style 1:

USB Host OTG Adapter for OTG Enabled Smartphone Tablet PC

Features

USB Host OTG Adapter for OTG Enabled Smartphone Tablet PC 

Support OTG enabled smartphones and Tablets with micro USB port
Allows to contact your smartphone or Tablet with most USB devices: USB flash drive, keyboard, mouse, etc.
Mini size and light weight
Plug and play, easy and simple to use
Weight: 4g
Color: White
Size: 2.8 x 1.9 x 1cm/1.1 x 0.75 x 0.4in(L x W x T)

Package include:
1 x OTG Adapter

Style 2:

Micro USB Smart Card Reader for OTG Enabled Smartphone Tablet PC Support SD/TF

Features

Micro USB Smart Card Reader for OTG Enabled Smartphone Tablet PC

High speed micro USB 2.0
Support OTG enabled smartphones and Tablets with micro USB port
Support SD/SDHC/SDXC card
Support TF/Micro SD card
Plug and play
Mini size and light weight

Weight: 7g
Material: Plastic
Color: White
Size: 3.8 x 2.7 x 0.85cm/1.5 x 1.1 x 0.35in(L x W x T)

Package included:
1 x Card Reader

Style 3:

Multi-function Car Reader OTG Connection Kit for Smart Phone Tablet PC

Features

Multi-function Car Reader OTG Connection Kit for Smart Phone Tablet PC

High speed micro USB 2.0
USB interface support USB devices such as USB flash disk, USB mouse, USB keyboard and etc.
Supports SD(HC)/MS/MMC/M2/TF memory cards
Support OTG enabled smartphones and Tablets with micro USB port
Plug and play

Weight: 18g
Color: White
Material: Plastic
Size: 5 x 4.3 x 1.4cm/2 x 1.7 x 0.55in(L x W x T)

Package included:
1 x Card Reader