diff --git a/sys/dev/dc/if_dc.c b/sys/dev/dc/if_dc.c
index 21bead27c524..a5207b519669 100644
--- a/sys/dev/dc/if_dc.c
+++ b/sys/dev/dc/if_dc.c
@@ -157,6 +157,10 @@ static struct dc_type dc_devs[] = {
 		"ADMtek AL981 10/100BaseTX" },
 	{ DC_VENDORID_ADMTEK, DC_DEVICEID_AN985,
 		"ADMtek AN985 10/100BaseTX" },
+	{ DC_VENDORID_ADMTEK, DC_DEVICEID_ADM9511,
+		"ADMtek ADM9511 10/100BaseTX" },
+	{ DC_VENDORID_ADMTEK, DC_DEVICEID_ADM9513,
+		"ADMtek ADM9513 10/100BaseTX" },
 	{ DC_VENDORID_ASIX, DC_DEVICEID_AX88140A,
 		"ASIX AX88140A 10/100BaseTX" },
 	{ DC_VENDORID_ASIX, DC_DEVICEID_AX88140A,
@@ -1898,6 +1902,8 @@ dc_attach(device_t dev)
 		dc_read_srom(sc, sc->dc_romwidth);
 		break;
 	case DC_DEVICEID_AN985:
+	case DC_DEVICEID_ADM9511:
+	case DC_DEVICEID_ADM9513:
 	case DC_DEVICEID_FE2500:
 	case DC_DEVICEID_EN2242:
 	case DC_DEVICEID_HAWKING_PN672TX:
diff --git a/sys/dev/dc/if_dcreg.h b/sys/dev/dc/if_dcreg.h
index d15d68cb3c66..e638267f0bcc 100644
--- a/sys/dev/dc/if_dcreg.h
+++ b/sys/dev/dc/if_dcreg.h
@@ -866,6 +866,8 @@ struct dc_softc {
  */
 #define DC_DEVICEID_AL981	0x0981
 #define DC_DEVICEID_AN985	0x0985
+#define DC_DEVICEID_ADM9511	0x9511
+#define DC_DEVICEID_ADM9513	0x9513
 
 /*
  * 3COM PCI vendor ID
diff --git a/sys/pci/if_dc.c b/sys/pci/if_dc.c
index 21bead27c524..a5207b519669 100644
--- a/sys/pci/if_dc.c
+++ b/sys/pci/if_dc.c
@@ -157,6 +157,10 @@ static struct dc_type dc_devs[] = {
 		"ADMtek AL981 10/100BaseTX" },
 	{ DC_VENDORID_ADMTEK, DC_DEVICEID_AN985,
 		"ADMtek AN985 10/100BaseTX" },
+	{ DC_VENDORID_ADMTEK, DC_DEVICEID_ADM9511,
+		"ADMtek ADM9511 10/100BaseTX" },
+	{ DC_VENDORID_ADMTEK, DC_DEVICEID_ADM9513,
+		"ADMtek ADM9513 10/100BaseTX" },
 	{ DC_VENDORID_ASIX, DC_DEVICEID_AX88140A,
 		"ASIX AX88140A 10/100BaseTX" },
 	{ DC_VENDORID_ASIX, DC_DEVICEID_AX88140A,
@@ -1898,6 +1902,8 @@ dc_attach(device_t dev)
 		dc_read_srom(sc, sc->dc_romwidth);
 		break;
 	case DC_DEVICEID_AN985:
+	case DC_DEVICEID_ADM9511:
+	case DC_DEVICEID_ADM9513:
 	case DC_DEVICEID_FE2500:
 	case DC_DEVICEID_EN2242:
 	case DC_DEVICEID_HAWKING_PN672TX:
diff --git a/sys/pci/if_dcreg.h b/sys/pci/if_dcreg.h
index d15d68cb3c66..e638267f0bcc 100644
--- a/sys/pci/if_dcreg.h
+++ b/sys/pci/if_dcreg.h
@@ -866,6 +866,8 @@ struct dc_softc {
  */
 #define DC_DEVICEID_AL981	0x0981
 #define DC_DEVICEID_AN985	0x0985
+#define DC_DEVICEID_ADM9511	0x9511
+#define DC_DEVICEID_ADM9513	0x9513
 
 /*
  * 3COM PCI vendor ID