One or two  2.5" SATA drives
HDD 100 / 120 / 160 / 200 / 320GB (7200 RPM)
Expandible up to 3TB
Optical Drive
8x Double-layer DVD±R/RW or Blu-Ray R/RE
(can be replaced with up to two  2.5" SATA drives or one 1TB drive)
Graphics expansion
4-slot midplane options
Option 1:
(1) factory-accessible PCI-X slot
(2) PCI Express 8x (16x mechanical) slots
(1) PCI-X 64-bit/100MHz slot
Option 2:
(1) factory-accessible PCI-X slot
(1) PCI Express 16x slot
(2) PCI-X 64-bit/66MHz slots
Option 3:
(1) factory-accessible PCI-X slot
(2–3) PCI Express 8x (16x mechanical) slots
(depending on processor)
2-slot midplane options
Option 1:
(1) PCI Express 16x full length slot
(1) PCI-X 64-bit/133MHz full length slot
Option 2:
(2) PCI-X full length slots
Option 3:
(2) PCI Express 8x (16x mechanical) slots
Option 4:
(1) 5V PCI slot
(1) PCI Express 16x slot
Display
Integrated 17" display with up to 1920 x 1200 resolution
6 lcd unities may be installed, 3 of them are portable together with the casa
Operating systems
OS Server:
SuSe Enterprise Linux
Red Hat Enterprise Linux 4 & 5
CentOS 5
Windows 2003 Server
Solaris 10 x86 (64-bit only)
OS Workstation:
Windows XP Pro
Windows Vista Business (64-bit only)
SuSe Desktop Linux
Fedora Core 7 & 8 Desktop
CentOS 5
Solaris 10 x86 (64-bit only)
Input Devices
Support for the most commonly used USB devices, Bluetooth and Wireless 
Physical
16.8"W x 5.69"D x 11.44"H
13.5-19.5 lbs (depending on configuration)
Power supply and regulation
400w or 520w—110-220V 50-60Hz
Class A. Certified TUV.
Environmental maximums
Temperature:
Operating:
+ 5°C–45°C, 41°F–113°F (16GB RAM)
+ 5°C–40°C, 41°F–104°F (24GB RAM)
Non operating:
-40°C–65°C, -40°F–149°F
Relative humidity:
5-95%  non-condensing
The Next Computing Evo HD series offers a highly versatile and completely customizable architecture. In order to better fit your needs, the hardware is compatible with the top business solutions of the market.

Evolved bandwidth optimisators
Steelhead products family of Riverbed has dramatically changed the expectations regarding the WAN application performances.
With Steelhead appliances any IT department will be able to satisfy the most demanding clients and meet their internal strategic goals.  Companies can offer to their customers the same LAN-like application performances and consolidate server and data distribution by reducing remote backup infrastructures and bandwidth costs related to different geographically located offices.
Using Riverbed Steelhead and Steelhead Mobile companies of all sizes around the world have been able to accelerate their appliance performance. Steelhead components offer the best performing solution available and deliver the single solution that scales across the broadest range of applications and network topologies, bandwidth and latency problems may be over. Thanks to Steelhead components data move faster while applications work without any problem, which enables IT technicians to implement safer and more efficient network infrastructures.

Main Advantages
Application acceleration
Riverbed®'s Steelhead appliances provide dramatic TCP application performance increase on the Wide Area Network (WAN) - typically by five to 50 times and in some cases up to 100 times faster . Different offices collaborate better as e-mail exchange and file sharing are performed in few seconds rather than minutes or hours. The SSL Support accelerates the company applications without breaking the centralized trust model favored by security architects. Furthermore, the QoS function further optimizes UDP applications, as VoIP or video as well as all the applications that run over TCP.

IT consolidation
Using Steelhead appliances organizations can consolidate all types of servers – fileserver, exchange server, archive server, application server, backup systems, tape libraries- from a branch office into a unique datacenter and, at the same time, guarantee the performance that end -users need.

Reduced bandwidth
The Steelhead products reduce bandwidth utilization. As a matter of fact our customers reduce by 60 to 95% of the existing bandwidth utilization once they have installed the Steelhead appliances.
Backup and replication application are accelerated and simplified
Using Steelhead appliances the WAN backup are faster, as they take few seconds instead of hours, which cut backup windows while remote backup infrastructures, e.g. tape libraries and dedicated servers, become useless.

Mobile User
With Steelhead Mobile, mobile workers can now have the same LAN-like access to company’s applications and data that employees in the office have.

Everything depends of RiOS
Riverbed Optimization System
Riverbed’s optimization System (RiOS) is the software which powers the award-winning Steelhead products - these are unique on the field of the application acceleration and its related products. RiOS is based on patented technology which provides you a comprehensive solution to the problems you may encounter on the WAN geographical networks and on the application performance, e.g.
• Insufficient bandwidth
• Traffic protocols insufficient in high-latency environments
• Application protocols insufficient in high-latency environments
RiOS has been developed in order to provide the highest application performances across the broad range of applications that enterprises care about the most. Moreover, it dramatically simplifies the implementation, management and monitoring operations on the WDS appliances (Wide-Area Data Services).
RiOS  provides an integrated infrastructure for data reduction, TCP optimization, application optimization, file sharing with the branches and management services in order to ensure a comprehensive solution for the company’s wide-area data services (WDS) products. 
RiOS is a scalable product, suitable for any kind of application and network.

Optimizations:
DATA
• Optimization of the whole WAN traffic, either TCP or UDP
•  eliminates 60 to 95%  of the WAN traffic
• QoS implementation which works both on the latency
and the bandwidth

TRANSPORT
• Eliminates  65% to 98% TCP packets required to transfer data
• Acceleration of the SSL encrypted traffic as HTTPS
• Optimization of traditional and high bandwidth connections

APPLICATIONS
• Enhance network  performances of the main company’s application
• Enhance data and transport optimization
• Eliminates  up to 98% of the transactions required to  data transfer
• Activates  transparent prepopulation, file services and offline operations and  more

MANAGEMENT
• Allows a transparent implementation and a centralized management
• Makes possible to contemporarily manage up to 500 Steelhead  appliances from a unique workstation

SteelHead Mobile
Mobile workforce is everywhere
With Steelhead Mobile, mobile workers can now have the same LAN-like access to company’s applications and data that employees in the office have.  These solutions use software running on any laptop or desktop which enables the end-user to fully benefit of the RiOS system advantages.
Steelhead Mobile directly interacts with any Steelhead appliance. Application optimization will be the same as that obtained when using  contemporarily two Steelhead appliances.
The end-users may use the applications and collaborate exactly in the same way, and even faster. No need to change applications or the used procedures, the end-user and the IT responsible are used to: servers, routers, VPN infrastructure or other key technologies of the company don't need to be changed. With Steelhead Mobile, mobile workers can be more productive as never before.