diff --git a/src/hw/urukul.md b/src/hw/urukul.md
index cbf6942..4fa5539 100644
--- a/src/hw/urukul.md
+++ b/src/hw/urukul.md
@@ -35,9 +35,11 @@ There is no intrinsic impact on Urukul output phase noise and the synchronizatio
 Users may choose to use only one EEM port, if they want more cards to be in their crate. However following features
 will become unavailable:
  * SU-Servo
- * RF switch control
+ * Low-latency RF switch control
  * Synchronization
 
+RF switches are still available but the commands need to go over the SPI bus so it's higher-latency and lower-resolution.
+
 ### Urukul 4412
 
 Urukul 4412 has higher frequency resolution (47 bit against 32 at Urukul 4410), however lacks such features: