HP Z220 i5 Quad Core - Workstation

Nvidia Quadro 400 512 MB 64-bit, DDR3

2 PCI Express Gen3 x16 mechanical/electrical; 1 PCI Express Gen3 x8 mechanical/electrical; 1 PCI Express Gen2 x8 mechanical/x4 electrical; 1 PCI Express Gen2 x4 mechanical/x1 electrical; 1 Legacy PCI

Bays:

3 external 5.25-inch bays, 3 internal 3.5-inch HDD bays (4 total when using 5.25-inch bay converters); up to 4 eSATA

Front: 2 USB 3.0, 1 USB 2.0, 1 IEEE 1394a (requires optional PCIe card to function), 1 Headphone, and 1 Microphone.

Rear: 1 DVI-I Single Link and 1 DisplayPort output from Intel HD graphics (available on selected processors only), 2 USB 3.0, 4 USB 2.0, 1 optional serial port, 2 PS/2, RJ-45 (NIC), 1 Audio Line-in, 1 Audio Lineout, 1 Microphone.

Internal: 5 USB 2.0 ports available by two separate 2x5 and one 1x5 header: supports one HP Internal USB Port Kit (one port on each Kit) for 1x5 pin header plus (a) up to two USB Media Card Readers, or (b) one Internal Port kit and one USB Media Card Reader.