diff --git a/docs/source/devices/devices.rst b/docs/source/devices/devices.rst
index 04c3faa6c470c89c6a211b582f39bed0900cfc35..7cc6c7b9076c8bedaacb070dfbb34d3917bfa10b 100644
--- a/docs/source/devices/devices.rst
+++ b/docs/source/devices/devices.rst
@@ -10,3 +10,9 @@ The `recv == Device("LTS/RECV/1")` device controls the RCUs, the LBA antennas, a
 - The `Ant_mask_RW` attribute is an array of `bool[N_RCUs][N_Antennas_per_RCU]`. It controls which antennas will actually be configured, when fields referring to antennas are set. Any antenna for which the mask is False will not be configured when antenna control points are set.
 
 Typically, `N_RCUs == 32`, and `N_Antennas_per_RCU == 3`.
+
+SST and XST
+-----------
+
+The `sst == Device("LTS/SST/1")` and `xst == Device("LTS/XST/1")` devices manages the SSTs (subband statistics) and XSTs (crosslet statistics), respectively, that are emitted by the Uniboards in SDP. By default, each device configures the statistics to be streamed to itself (the device), from where the user can obtain them.
+