thodg/cgminer

diff --git a/README b/README
index 7f0e772..68ec0c7 100644
--- a/README
+++ b/README
@@ -692,6 +692,16 @@ For RPC API details see the API-README file
 
 FAQ
 
+Q: I have multiple USB stick devices but I can't get them all to work at once?
+A: Very few USB hubs deliver the promised power required to run as many devices
+as they fit if all of them draw power from USB.
+
+Q: I've plugged my devices into my USB hub but nothing shows up?
+A: RPis and Windows have incomplete or non-standard USB3 support so they may
+never work. It may be possible to get a USB3 hub to work by plugging it into
+a USB2 hub. When choosing a hub, USB2 hubs are preferable whenever possible
+due to better support all round.
+
 Q: Can I mine on servers from different networks (eg xxxcoin and bitcoin) at
 the same time?
 A: No, cgminer keeps a database of the block it's working on to ensure it does