supply of 03 no . computer set with ups and printer . , providing of desktop computer system with printer & ups ( reputed brand ) as per specification or higher given below:- , desktop: processor: minimum i5- 8100 processor ( quad core , upto 3 . 0ghz , 4m cache chipset: compatible with processor bus architecture: 3 pci ( pci/pci express ) or more ram: minimum 4gb 2400 mhz ddr4 non-ecc or better ( expandability upto 16 gb ) graphics: integrated hd graphics hdd: minimum 1 tb 7200 rpm hard drive or higher type-sata monitor: 18 . 5 inch or above led color monitor keyboard: standard 104 keys oem usb keyboard same make as desktop oem mouse: optical with usb interface cabinet: mini tower/tower ports: minimum 6 usb ports or more ( minimum 2 ports with usb 3 . 0 ) display port/vga , hdmi port audio port for microphone and head phone in front . network connectivity: 10/100/1000 on board integrated network port ( gig ethernet nic ) operating system: minimum microsoft windows 10 professional/enterprise edition preloaded . warranty: 3 years comprehensive onsite warranty from oem . , printer: features: type - mono ( laser ) speed: minimum 30 pages per minute paper type: a4 print resolution: minimum 600 dpi ( 600x600 ) duty cycle: minimum 8000 single sides pages per month ( maximum ) minimum 1000 single sided pages per month ( average ) processor: minimum 266 mhz with minimum 8 mb ram or higher feed slot: minimum 10 sheets top ( face down ) output bin: yes output bin: yes os support: win 7 , 8 , 8 . 1 , 10 ( 32 and 64 bit ) other features: certified toner for non-hazardous performance print cartridge color: black warranty: 3 years comprehensive onsite warranty from oem , ups: input: va: 1000 voltage: 230v voltage range: 160-280v ac frequency: 45-55 hz ( auto sensing ) output: voltage mains: 190-253vac voltage regulation ( batt mode ) : 230+/-10% rms frequency: 50 hz battery: battery type and number: 12v 7ahx2 backup time ( at a pc load with 18 . 5 inch monitor ) : minimum 30 minutes warranty: three years comprehensive onsite warranty