diff --git a/VRR-setups.md b/VRR-setups.md
index 40dde8a..79202b2 100644
--- a/VRR-setups.md
+++ b/VRR-setups.md
@@ -11,4 +11,5 @@ To add an entry:
 | BenQ EL2870U | AMD RX580 | 40-60 Hz | No flickering
 | AOC Q27G2U | AMD Vega 64 | 48-144 Hz | Flickering on transitions between 48-75 Hz
 | Acer VG270U P | AMD RX480 | 40-144 Hz | No flickering
-| ASUS VP28U | AMD RX550 | 40-60 Hz | No flickering
\ No newline at end of file
+| ASUS VP28U | AMD RX550 | 40-60 Hz | No flickering
+| Dell S3220DGF | AMD RX580 | 48-164 Hz | No flickering, but image darkens at higher refresh
\ No newline at end of file