diff --git a/example/KCU105/fpga/README.md b/example/KCU105/fpga/README.md
index f56d76a..df2e8c7 100644
--- a/example/KCU105/fpga/README.md
+++ b/example/KCU105/fpga/README.md
@@ -17,6 +17,7 @@ The design places looped-back MACs on the BASE-T port and SFP+ cages, as well as
 
 *  FPGA: xcku040-ffva1156-2-e
 *  1000BASE-T PHY: Marvell 88E1111 via SGMII
+*  1000BASE-X PHY: Xilinx PCS/PMA core via GTH transceiver
 
 ## Licensing