diff --git a/ddbridge/ddbridge-core.c b/ddbridge/ddbridge-core.c
index 7d3a14a..ba21e71 100644
--- a/ddbridge/ddbridge-core.c
+++ b/ddbridge/ddbridge-core.c
@@ -50,6 +50,10 @@ static int old_quattro;
 module_param(old_quattro, int, 0444);
 MODULE_PARM_DESC(old_quattro, "old quattro LNB input order ");
 
+static int xo2_speed = 2;
+module_param(xo2_speed, int, 0444);
+MODULE_PARM_DESC(xo2_speed, "default transfer speed for xo2 based duoflex, 0=55,1=75,2=90,3=104 MBit/s, default=2, use attribute to change for individual cards");
+
 #define DDB_MAX_ADAPTER 64
 static struct ddb *ddbs[DDB_MAX_ADAPTER];
 
@@ -2117,7 +2121,7 @@ static int init_xo2(struct ddb_port *port)
 	i2c_write_reg(i2c, 0x10, 0x08, 0x07);
 
 	/* speed: 0=55,1=75,2=90,3=104 MBit/s */
-	i2c_write_reg(i2c, 0x10, 0x09, 2);
+	i2c_write_reg(i2c, 0x10, 0x09, xo2_speed);
 
 	if (dev->link[port->lnr].info->con_clock) {
 		pr_info("Setting continuous clock for XO2\n");