Metal 7-Port USB 2.0 Powered Hub for PC-MAC with Power Adapter
Amazon.com: Belkin 7-Port USB Hub - Powered Desktop USB Docking Station - USB Adapter supports USB A, USB 2.0 and USB 1.1 - USB Charging Hub - USB Splitter for USB Drives,
4 Port USB 2.0 Powered Hub w/ Port Status LEDs - Coolgear
Why are 4 and 7 port USB hubs the most common? Why not other counts? - Quora
USB HUBs : Cascading hubs
7 Port Compact Black USB 2.0 Hub - USB-A Hubs | StarTech.com
Is it okay to use multiple-multi USB hubs? - Quora
How Many USB Devices Can I Connect? | Acroname
USB hub - Wikiwand
Amazon.com: IOGEAR USB 2.0 2x4 Peripheral Switching Hub - 2 PC Share To 4 USB Devices - Up To 480Mbps - Mobile Devices Charging - Mouse/Keyboard - Printer - Scanner - EX HD - LED Indicators w/Remote - GUS402 : Electronics
Amazon.com: Coolgear 4-Port Industrial USB 2.0 Powered Variable Voltage Input : Electronics
Industrial 10-Port USB 2.0 High Power Charger Hub Up to 2.1A per port
reference design on cascading usb hubs.. - Interface forum - Interface - TI E2E support forums
2 Port Dual Monitor KVM Switch HDMI 4K60Hz with USB Hub TESmart
10 port USB 2.0 Hi-Speed Desktop Hub, Self Powered
Make a Crazy 25-Port USB Hub | UUGear
USB 2.0 4-Port USB Hub - Encore Electronics Inc.
4imprint.com: Cascade 4 Port USB Hub 133535
multiple TUSB4041I chained cascade usb hub - Interface forum - Interface - TI E2E support forums
kvm switch - A USB hub will not function when it's connected more than 5 hubs away from the root port - Super User
Industrial 10-Port USB 2.0 High Power Charger Hub Up to 2.1A per port
USB hub - Wikipedia
How to Choose the Right Industrial USB Hub for Your Install | Coolgear