diff --git a/boards/uniboard2/designs/unb2_test/revisions/unb2_test_10GbE/unb2_test_10GbE.vhd b/boards/uniboard2/designs/unb2_test/revisions/unb2_test_10GbE/unb2_test_10GbE.vhd
index 5ed2e6172e590aaeb9bce084183f38436254ffdd..3171433cf86485ade94cc9a84544969f6801d186 100644
--- a/boards/uniboard2/designs/unb2_test/revisions/unb2_test_10GbE/unb2_test_10GbE.vhd
+++ b/boards/uniboard2/designs/unb2_test/revisions/unb2_test_10GbE/unb2_test_10GbE.vhd
@@ -149,8 +149,8 @@ BEGIN
     BCK_REF_CLK  => BCK_REF_CLK,
 
     -- back transceivers
-    BCK_RX       => BCK_RX,
-    BCK_TX       => BCK_TX,
+  --  BCK_RX       => BCK_RX,
+  --  BCK_TX       => BCK_TX,
 
     BCK_SDA      => BCK_SDA,
     BCK_SCL      => BCK_SCL,