The Lenz brand offers the Lenz LZV200 Central Update USB Key, under part number 80210.
Features of the 80210 USB key,
Software update: 4.0
Green key with visible components.
Configured for use on the Lenz digital module, which has the functionality to release railway products in miniature formats (scales: HO: 1/87, O: 1/43, N: 1/220...)