M72e

CPU

 * Intel Core i3 2120T Sandy Bridge Stepping Q0 3MB 2c FCLGA 2.6GHZ 35W


 * Intel Pentium G630T Sandy Bridge Stepping Q0 3MB 2c FCLGA 2.3GHz 35W


 * Intel Pentium G620T Sandy Bridge E Stepping Q0 3MB 2c FCLGA 2.2GHz 35W


 * Intel Pentium G530T Sandy Bridge Stepping Q0 2MB 2c FCLGA 2.0GHz 35W


 * Intel Celeron G460 Sandy Bridge  Stepping Q0 1MB 1C FCLGA 1.80GHz 35W


 * Intel Celeron G540T Sandy Bridge  Stepping Q0 1MB 1C FCLGA 2.1GHz 35W


 * Intel Pentium G640T Sandy Bridge  Stepping Q0 1MB 1C FCLGA 2.4GHz 35W

Chipset

 * Intel H61 Express

Processor Socket

 * LGA1155 Socket

Memory

 * Supports 2GB/4GB/8GB/16GB memory,


 * Module Spec : PC3-12800 1600MHz DDR3 SODIM


 * DIMM Slots : 2 SODIMM

Audio

 * Integrated Audio
 * ALC662 chipset

Networking

 * Realtek 8111E PCI-E Gigabit Ethernet controller

Drive bays
One 2.5" bay

One 5.25 inch external bay (Optical Disk Drives)

Two (the 2nd is optional) HDD support

One ODD supported

Standard I/O ports

 * High speed USB 2.0 - 2 (back)


 * Three internal high speed USB 2.0 (front)


 * Two audio connectors (microphone and headphone) on front panel


 * One integrated VGA port


 * Two audio connectors (audio line in and audio line out) on rear panel


 * One RJ45 connector

Slots

 * One PCI Express Mini Card slot

Power

Power management

 * Advanced Configuration and Power Interface (ACPI) support

Power supply

 * Tiny PC 65W adapter

Security
-Tool-less top cover - rotates about rear top edge
 * Ease-of-use attributes:
 * USB Individual disable/enable


 * Computrace support


 * Kensington slot (in rear for attachment of optional Kensington® Microsaver® cable)


 * Padlock loop

Operating system

 * Windows 7 Home Basic


 * Windows 7 Home Premium 32-bit


 * Windows 7 Home Premium 64-bit


 * Windows 7 Professional 32-bit


 * Windows 7 Professional x64 Edition


 * Windows XP Professional


 * Windows 7 Ultimate 32-bit


 * Windows 7 Ultimate 64-bit


 * Windows 7 Starter 32-bit ( Only on certain models)

Optical drive

 * Slim DVD-ROM


 * Slim DVD Recorderable

Hard drive features

 * 5400RPM Serial ATA supported


 * Solid State Drive


 * Supports 4GB, 128GB, 320GB, 500GB and 750GB

Video

 * Integrated Graphics Adapter - Intel HD Graphics 2000 (for GT1) / Intel HD Graphics

Source
https://support.lenovo.com/us/en/solutions/pd024052