The XLe has gone through two stages of update.
The first update, was to include a mini USB programming port.
This requires CScape 9.8 or later to connect. Earlier versions of CScape will not find this processor.
The second update, is to enhance the processor performance and include an Ethernet port.
This unit is known as the XLEe and will commonly be specified as an XLe 1E2 where the 'E' refers to the Ethernet port.