Hi, we bought two Smart-UPS X 1500 FW:UPS 09.1 / ID=20 lsusb -v: Bus 002 Device 002: ID 051d:0003 American Power Conversion UPS Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x051d American Power Conversion idProduct 0x0003 UPS bcdDevice 1.06 iManufacturer 1 American Power Conversion iProduct 2 Smart-UPS X 1500 FW:UPS 09.1 / ID=20 iSerial 3 AS1301212410 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 41 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 2mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.00 bCountryCode 33 US bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 515 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 20 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 10 Device Status: 0x0002 (Bus Powered) Remote Wakeup Enabled I see there should be problems to get it work with a free daemon like nut, but are there some hints using it? In my ups.conf I tried: [apc001] driver = apcsmart port = auto desc = "Smart APC" And I get broadcast messages when I connect/disconnect the device like: Broadcast Message from root at glus (somewhere) at 14:24 ... Communications restored with UPS glustersv001 (glustersv001 is the machine I connect it to) Thank you for support, Gregor --