diff --git a/core/nwb.base.yaml b/core/nwb.base.yaml
index ce0a3fa0..a294dec1 100644
--- a/core/nwb.base.yaml
+++ b/core/nwb.base.yaml
@@ -249,6 +249,14 @@ groups:
       stored external to the NWB file, in files storing raw data. Once timestamp
       data is calculated, the contents of 'sync' are mostly for archival purposes.
     quantity: '?'
+  links:
+  - name: device
+    target_type: Device
+    doc: Device used to record this time series. This should not be used to represent
+      a relationship between a stimulation time series and the device used for
+      stimulation; that relationship should be represented through other means in the
+      file.
+    quantity: '?'
 
 - neurodata_type_def: ProcessingModule
   neurodata_type_inc: NWBContainer
diff --git a/docs/format/source/format_release_notes.rst b/docs/format/source/format_release_notes.rst
index 2be07957..a3fdb27a 100644
--- a/docs/format/source/format_release_notes.rst
+++ b/docs/format/source/format_release_notes.rst
@@ -12,6 +12,7 @@ Minor changes
   that are typically used together for analysis, such as spike sorting. (#659)
 - Specified that units for ``ElectrodesTable`` coordinate fields (``x``, ``y``, ``z``, ``rel_x``, ``rel_y``, ``rel_z``)
   should be in microns. (#658)
+- Added optional link from ``TimeSeries`` to ``Device`` to represent the device used to record the time series. (#662)
 
 
 2.9.0 (June 26, 2025)