For large enterprise(EDU/GOV/PUB etc.) with a need for an essential desktop PC, the ThinkCentre M73 provides the latest Intel technology at a competitive price without sacrificing security, stability, manageability, and green environment. Technical Specifications: Processor Clock Speed:3.3 GHz Generation:4 Installed Qty:1 Manufacturer:Intel Max Supported Qty:1 Max Turbo Speed:3.7 GHz Number of Cores:Quad-Core Processor Main Features:Intel Turbo Boost Technology 2 Processor Number:I5-4590 Type:Core i5 Optical Storage Drive Type:DVD-Writer Interface Type:Serial ATA Type:DVD-Writer RAM Configuration Features:1 x 4 GB Empty Slots:1 Features:Unbuffered Form Factor:DIMM 240-pin Installed Size:4 GB Max Supported Size:16 GB Memory Specification Compliance:PC3-12800 Memory Speed:1600 MHz Slots Qty:2 Technology:DDR3 SDRAM Storage Hard Drive Capacity:180 GB Features:TCG Opal Encryption Interface Type:Serial ATA-600 Service & Support On-Site Warranty:On-site Type:3 years warranty Audio Input Type:None Audio Output Compliant Standards:High Definition Audio Form Factor:Integrated Sound Output Mode:Stereo Bay Provided Form Factor:5.25" x 1/2H Free Qty:0 Total Qty:1 Form Factor:3.5" x 1/3H Cabinet Chassis Built-in Devices:Speaker Dimensions & Weight Depth:15 in Height:4 in Weight:14.55 lbs Width:13.2 in Input Device Type:Keyboard , Mouse Interface Provided Location:2 front, 2 rear Qty:4 Type:USB 2.0 Location:1 front, 1 rear Qty:2 Type:Microphone Location:1 in front Qty:1 Type:Headphones Type:USB 3.0 Type:Serial Type:PS/2 keyboard Type:PS/2 mouse Type:LAN (Gigabit Ethernet) Type:VGA Type:DisplayPort Type:Audio line-in Type:Audio line-out Mainboard Chipset Type:Intel H81 Express Processor Socket:LGA1150 Socket Networking Data Link Protocol:Ethernet , Fast Ethernet , Gigabit Ethernet Ethernet Controller(s):Realtek RTL8111GN Features:Wake on LAN (WoL) Form Factor:Integrated Optical Storage (2nd) Drive Type:No optical drive Type:None OS Provided Edition:Windows 7 Professional , Windows 8.1 Pro Family:Windows 7 , Windows 8.1 Preinstalled OS:Microsoft Windows 7 Professional 64-bit Edition , Windows 7 Type:Windows 8.1 Pro 64-bit Edition / Windows 7 Professional 64-bit Edition downgrade Power Device Frequency Required:50/60 Hz Nominal Voltage:AC 120/230 V Power Factor Correction:Yes (active) Power Provided:240 Watt Type:Power supply Printer Type:None Service Support Details Full Contract Period:3 years Support Details Location:On-site Support Details Type:Limited warranty Slot Provided Free Qty:1 Total Qty:2 Free Qty:0 Total Qty:1 Free Qty:2 Storage Controller Form Factor:Integrated Installed Qty:1 Interface Type:Serial ATA-600 Type:Serial ATA Storage Controller (2nd) Type:None Storage Removable Type:None System Hard Drive Capacity:180 GB Type:Personal computer Video Output Form Factor:Integrated Graphics Processor Series:Intel HD Graphics Graphics Processor Vendor:Intel HD Graphics 4600 Max Monitors Supported:2 Video Interfaces:DisplayPort , VGA Hard Drive Installed Qty:1 Interface Class:Serial ATA Type:SSD Hard Drive (2nd) Type:None Audio Output Details Speaker Type:None Cache Memory Installed Size:6 MB Per Processor Size:6 MB Chassis Form Factor:Desktop Manufacturer Form Factor:Small form factor Expansion Bays Form Factor (metric):13.3 cm x 1/2H Type:External Form Factor (metric):8.9 cm x 1/3H Type:Internal Expansion Slots Type:DIMM 240-pin Type:CPU Size:Low-profile Type:PCIe 3.0 x16 Type:PCIe 2.0 x1 Hard Drive (3rd) Type:None Keyboard Interface:USB Localization & Layout:English - US Mouse Interface:USB Technology:Optical