Raspberry Pi Model B+ adds USB ports, expansion pins
What USB Ports are on the Raspberry Pi?
Raspberry Pi launches Model B+ with extra USB ports, microSD support | Engadget
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Zero4U - 4 Port USB Hub for Raspberry Pi Zero v1.3 : ID 3298 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: 4-Port Raspberry Pi USB HUB HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W, 4 USB Ports Compatible with USB2.0/1.1 Onboard USB to UART Onboard Multi Indicators : Electronics
Raspberry Zero Ethernet Router | Raspberry Pi 2 Ethernet Port - Raspberry Pi 2 W Usb - Aliexpress
