diff --git a/sbc_case_builder.scad b/sbc_case_builder.scad
index c4d506d..167cf81 100644
--- a/sbc_case_builder.scad
+++ b/sbc_case_builder.scad
@@ -75,7 +75,7 @@ case_design = "shell"; // [shell,panel,stacked,tray,round,hex,snap,fitted]
 // base case style
 case_style = "none"; // ["none","vu5","vu7","sides"]
 // single board computer model
-sbc_model = "c4"; // [c1+,c2,c4,xu4,xu4q,mc1,hc1,hc4,m1,n1,n2,n2+,h2,show2,rock64,rockpro64,jetsonnano,rpizero,rpi3a+,rpi3b+,rpi4b,rockpi4b+,rockpi4c+,test]
+sbc_model = "c4"; // [c1+,c2,c4,xu4,xu4q,mc1,hc1,hc4,m1,n1,n2,n2+,h2,show2,rock64,rockpro64,jetsonnano,rpizero,rpi3a+,rpi3b+,rpi4b,rockpi4b+,rockpi4c,rockpi4c+,test]
 // sbc location x axis
 pcb_loc_x = 0; //[0:.5:200]
 // sbc location y axis
diff --git a/sbc_case_builder_library.scad b/sbc_case_builder_library.scad
index 416f4ab..411624a 100644
--- a/sbc_case_builder_library.scad
+++ b/sbc_case_builder_library.scad
@@ -109,7 +109,7 @@
     boom_vring(tolerance)
     access_port(size[],orientation)
     access_cover(size[],orientation)
-    hdmi_open()
+    hdmi_open(hdmi_style)
     microusb_open()
     fan_mask(size, thick, style)
     mask(loc_x,loc_y,rotation,side,class,type,case_z,wallthick,gap,floorthick,pcb_z)
@@ -2360,7 +2360,6 @@ module hdmi_open(hdmi_style) {
                 translate([-.25,-6.2,0]) rotate ([-90,0,0]) cylinder(d=1.5, h=9.5,$fn=30);
                 translate([6.75,-6.2,0]) rotate ([-90,0,0]) cylinder(d=1.5, h=9.5,$fn=30);
             }
-//            translate([2,-5,.5]) cube([11.5, 8, .5]);
         }
     }
     if(hdmi_style == "hdmi_mini") {
@@ -2370,7 +2369,17 @@ module hdmi_open(hdmi_style) {
                 translate([-1,-6.2,-.5]) rotate ([-90,0,0]) cylinder(d=3, h=10,$fn=30);
                 translate([12.25,-6.2,-.5]) rotate ([-90,0,0]) cylinder(d=3, h=10,$fn=30);
             }
-//            translate([2,-5,.5]) cube([11.5, 8, .5]);
+        }
+    }
+    if(hdmi_style=="dp_mini") {
+        size_x = 9;
+        size_y = 8;        
+        union() {    
+            difference() {
+                translate([-.25,-6,0]) cube([size_x, size_y, 5.75]);
+                translate([-7.5,-7,1]) rotate([0,45,0]) cube([size_x, size_y+2, 5.6]);
+                translate([10,-7,-5]) rotate([0,-45,0]) cube([size_x, size_y+2, 5.6]);                    
+            }
         }
     }
 }       
@@ -2526,6 +2535,19 @@ module mask(loc_x,loc_y,loc_z,rotation,side,class,type,wallthick,gap,floorthick,
     if(type == "hdmi_mini" && rotation == 270) {
         place(loc_x,loc_y,loc_z,11.5,8,rotation,side) hdmi_open("hdmi_mini");
     }
+    // dp mini opening
+    if(type == "dp_mini" && rotation == 0) {
+        place(loc_x,loc_y,loc_z,9,8,rotation,side) hdmi_open("dp_mini");
+    }
+    if(type == "dp_mini" && rotation == 90) {
+        place(loc_x,loc_y-.5,loc_z,9,8,rotation,side) hdmi_open("dp_mini");
+    }
+    if(type == "dp_mini" && rotation == 180) {
+        place(loc_x-.5,loc_y+6,loc_z,9,8,rotation,side) hdmi_open("dp_mini");
+    }
+    if(type == "dp_mini" && rotation == 270) {
+        place(loc_x+6,loc_y,loc_z,9,8,rotation,side) hdmi_open("dp_mini");
+    }
     // power plug openings
     if(type == "pwr5.5_7.5x11.5" && rotation == 0) {
         place(loc_x,loc_y,loc_z,7,7,rotation,side)