Zero4U: 4-Port USB Hub for Pi Zero 1.3/W | The Pi Hut
i-tec 4-Port USB 3.0 Ultra Slim HUB for Macbook, Mac Pro/mini, iMac, Surface Pro, XPS, Notebook, PC, USB Flash Drives, Mobile HDD for Windows MacOS Android ChromeOS : Amazon.co.uk: Computers & Accessories
Powered or unpowered—which USB hub should you buy?
12m USB 2.0 Active Extension Pro Hub - from LINDY UK
SNAPPY USB Hub, 4-Port, USB 3.0, Passive, Black | SL-140104-BK