HP Z820 Workstation

Chipset : Intel C602 chipset

Bays : Total Bays = 7

Internal bays: 4 internal 3.5-inch bays (4 with acoustic dampening rail assemblies)

Drive bays: 3 external 5.25-inch bays, 4 internal 3.5-inch bays

External bays: 3 external 5.25-inch bays

Top bay device depth limit: 175 mm

Middle bay device depth limit: 206 mm

Bottom bay device depth limit: 206 mm

Front I/O: 2 USB 3.0

1 USB 2.0

1 Headphone

1 Microphone, and 1 IEEE 1394a

Rear I/O: 1 IEEE-1394a

2 USB 3.0

4 USB 2.0

1 Serial

PS/2 keyboard and mouse

2 RJ-45 to integrated Gigabit LAN

1 Audio Line-In, 1 Audio Line-Out, 1 Microphone

Hard drive controllers supported: SATA and SAS controllers

Memory: 16 DIMM slots, up to 512GB, 8-channel ECC DDR3 1600 MHz, 4 channels per CPU

Memory expansion slots: 16 slots (8 slots per CPU)

Maximum memory: Supports up to 64GB using UDIMMs

Supports up to 256GB using RDIMMs

Supports up to 512GB using LRDIMM
Interfaces supported: 2-channel SATA 6.0 Gb/s Interface (2 channels e-SATA configurable)

4-channel SATA 3.0 Gb/s Interface

8-channel 6Gb SAS interface (8 SAS connectors on the motherboard), SAS ports can be ported externally by using the SAS Bulkhead and/or Back Panel connector Kits

USB 3.0, USB 2.0, IEEE 1394a