ASTHA MP27u Single Function Mono Laser Printer's method is Monochrome Laser Beam Printing. In this printer, the Print Speed is A4: Up to 27ppm (Simplex), 600 x 600dpi Print Resolution. This printer take First Printout Time (FPOT), Approx. 3.5sec. Here used GDI Print Language. This printer supports 150 sheets (based on 80g/m2) for Paper Input for Multi-Purpose Tray, 100 sheets (face down) (based on 80g/m2) for Paper Output. Here used different size of papers like- A4,B5,A5,Legal,Letter,JIS,ISO B5,Executive,Statement,Folio,C5 Env,No.10 Envelope. This printer is designed with LED indicators, Processor Speed: 1.2GHz, and comes with 128MB Device Memory, less Maximum Power Consumption. In this printer the supported Connectivity and Software are USB 2.0 High Speed. This printer is compatible with Windows 8.1 (32 / 64-bit), Windows 7 (32 / 64-bit), Windows Server 2012 (32 / 64-bit), Windows Server 2012 R2 (64-bit), Windows Server 2008 (32 / 64-bit), Windows Server 2008 R2 (64-bit), Mac OS 10.7.x - 10.9 x 3, Linux x 3, Citrix (FR2 and later) operating system, Dimensions(W*D*H): 356*356*236*182mm and Weight 5.2KG.