diff --git a/sys/dev/usb/serial/u3g.c b/sys/dev/usb/serial/u3g.c
index 59215e4d2a1a..b39607c2533b 100644
--- a/sys/dev/usb/serial/u3g.c
+++ b/sys/dev/usb/serial/u3g.c
@@ -242,6 +242,8 @@ static const STRUCT_USB_HOST_ID u3g_devs[] = {
 	U3G_DEV(DLINK3, DWM652, 0),
 	U3G_DEV(HP, EV2200, 0),
 	U3G_DEV(HP, HS2300, 0),
+	U3G_DEV(HP, UN2420_QDL, 0),
+	U3G_DEV(HP, UN2420, 0),
 	U3G_DEV(HUAWEI, E1401, U3GINIT_HUAWEI),
 	U3G_DEV(HUAWEI, E1402, U3GINIT_HUAWEI),
 	U3G_DEV(HUAWEI, E1403, U3GINIT_HUAWEI),
diff --git a/sys/dev/usb/usbdevs b/sys/dev/usb/usbdevs
index a64093ea9b20..cf509600f1e0 100644
--- a/sys/dev/usb/usbdevs
+++ b/sys/dev/usb/usbdevs
@@ -2229,6 +2229,8 @@ product HP 3300C		0x0205	ScanJet 3300C
 product HP CDW8200		0x0207	CD-Writer Plus 8200e
 product HP MMKEYB		0x020c	Multimedia keyboard
 product HP 1220C		0x0212	DeskJet 1220C
+product HP UN2420_QDL		0x241d	UN2420 QDL Firmware Loader
+product HP UN2420		0x251d	UN2420 WWAN/GPS Module
 product HP 810C			0x0304	DeskJet 810C/812C
 product HP 4300C		0x0305	Scanjet 4300C
 product HP CDW4E		0x0307	CD-Writer+ CD-4e