USB hub with four ports and no additional power is needed

Small and Convenient USB Hub, Sized 94*24.5*18.5/27.2*124mm, Made of ABS

Smile Appearance USB Hub with Four Hubs, 10*8*2.5mm Size

Small and Convenient USB Hub, Sized 94*24.5*18.5mm, Made of ABS

Smile Appearance USB Hub with Four Hubs, Sized 10*8*2.5mm

USB Hub with Four Ports and No Additional Power Needed

USB Hub and Card Reader Combos, Supports Magnetic, RFID/IC Chips Smart Card/PSAM Card Read/Write

USB Hub and Card Reader Combos, Magnetic/RFID/IC Chips Smart Card/PSAM Card Read and Write

4-port USB Hub with Plug-and-play and Hot-swap Functions, Includes Power Adapter

4-port USB Hub, Supports Microsoft's Windows 98/Me/2000/XP Operating Systems, Hot-swap Capability

4-port USB Hubs with GL850A Chipset, Support Plug-and-play Function and Hot-swap Capability

Portable USB Hub with 1.5, 12 and 480Mbps Data Transfer Rate, Supports Microsoft's Windows OS

7-port Portable USB Hub with Plug-and-play Function and GL850A Chip-set

USB HUB + Card Reader, Plug-and-play, Hot Swappable

2.0 USB HUB and Card Reader with Plug-and-play and Hot-swappable Function

4-port USB Hub with Up to 480Mbps Data Transfer Rate, USB 2.0 Interface and 4 LEDs

USB HUB + Card Reader, Plug-and-play Function, Hot Swappable

USB Hub + Card Reader with Four Slots, Plug-and-play Function, Compatible with USB1.1

4-port USB Hub, Compact Design for Laptop Computers, Supports Both OHCI and UHCI

Combo 3 USB Hub with 4 Slots, Can Read SD/SDHC/microSD/T-Flash/HC T-Flash/M2/MMC Series