This adapter is not submerged in clear epoxy; instead, it is encased in a sealant composite plus heatshrink, proofing it against moisture and dirt damage (but do not try to submerge it in water or sand; the clear epoxy one will also not do so well in those conditions).

The adapter is more compact in size due to the USB port being attached directly to the circuit board. It is soldered very securely to it and reinforced. If you wish for a flexible connection between the PC USB port and the adapter, you can use a USB extension cable.

The adapter has the identical Silicon Labs CP210x chipset, so the original instructions from Carrier on driver installation fully apply.

With this purchase, you will get the USB-L adapter and Rnet cable.