From a closed government office:  HP 6000 'MicroTower'. 

Cleaned inside and out.  Fast Quad CPU, added parallel port for legacy products
Room for additional hard drive and Optical drive.

Dedicated video card supports dual monitors.  Comes with a dual DVI adapter, unless you request a VGA adapter upon checkout/payment.

Windows 7 installed and updated.  We can install Windows 10 if you give us notice (please allow 1 extra day for processing)

NO SHIPPING outside the lower 48.  Shipping via Fedex, no PO Boxes please.

Model

Brand: HP/Compaq

Model: 6000 PRO MicroTower

Specifications / Features:

Processor: Intel Core 2 Quad Q9500 2.83 GHz, 64 bit 

Cache Per Processor: 4 MB L2 Cache

Memory: 6 GB DDR3

Storage: 250 GB SATA 7200 RPM

Graphics: ATI Radeon 2400 XT (256mb Video Ram)

Ethernet: 3 Gigabit Ethernet

Operating System: Windows 7 64-Bit

Optical Drive Type:  DVD±RW

Audio

Audio Chipset:  Integrated

Communications

LAN Chipset:  INTEL 82567LM

LAN Speed:  10/100/1000Mbps

Front Panel Ports

Front USB:  4

Front Audio Ports:  2

Back Panel Ports

PS/2:  2 (keyboard / mouse)

Video Ports: 1 VGA + dedicated Video card

Rear USB:  6

RJ45:  1 port

Rear Audio Ports:  2 ports

Expansion

PCI Slots (Available/Total)

1 PCI
1 PCI Express x16
2 PCI Express x1