This is an RBS50 Satellite converted from an RBR50. It functions exactly like a regular RBS50 but has a blue top instead of grey. The last pic shows the status of the unit connected on my network. Has firmware v2.7.5.4 on it, and will update firmware as a normal RBS50. If you hard reset it, it stays as a RBS50. External condition is good, noting minor marks, and sticker residue on the back.
eBay