Int Speaker (1W) / Ext 2.0 Speaker (4W) speaker power rating
Keyboard and mouse
Lenovo Preferred Pro Full Size Keyboard
Lenovo Slim USB Keyboard
Preferred Pro Fingerprint Keyboard
USB Optical ScrollPoint
Lenovo Enhanced Optical USB Mouse
Communications
Networking
Intel 82579
10Mbps, 100Mbps, 1000Mbps Data Rates Supported
RJ45 External Connector Type
Expansion
Drive bays
One 3.5 inch internal bay
One 5.25 inch external bay
One HDD support
Standard I/O ports
Eight high speed USB 2.0 - 2 (front), 6 (back)
Two 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
Slots
Two PCI available slot
One full height PCI Express x1
One full height PCI Express x16
1 standard serial, 1 optional - via PCI slot bracket
Power
Power management
Advanced Configuration and Power Interface (ACPI) support
Power supply
240W DC Power, 70%, Auto-sensing
Type 115/230V
100 - 127v/200-240v AC Input Voltage Range
50/60Hz AC Input Frequency
Security
Ease-of-use attributes:
Tool-less top cover - rotates about rear top edge
USB Individual disable/enable
Computrace support
Kensington slot (in rear for attachment of optional Kensington® Microsaver® cable)
Padlock loop
Software
Operating system
Windows 7 Professional 32bit
Windows 7 Professional 64bit
Windows 7 Home Premium 32bit
Windows 7 Home Premiun 64bit
Windows 7 Home Basic 32bit
DOS - Support
Redhat Linux\Novell Linux\SUSE Linux\Ubuntu Linux (Certified)
Storage
Optical drive
DVD-ROM
DVD Recorderable
Media Card Reader
USB 2.0 Mass Storage Device (Flash)
Hard drive features
7200RPM, 10KRPM Serial ATA supported
Flash Solid State Drive
Supports 250GB, 320GB, 500GB, 1TB and 160G SSD
Video
Integrated Graphics Adapter
ATI Radeon HD5450
ATI Radeon HD6450
Certification
Industry Standards
All systems conforms to the following industry standards:
ACPI v3.0
DMI v2.0
IEEE 802.3
JEDEC 240-pin DIMM memory
SmBios v2.6
PCI v2.3
PCIe v1.0
Serial ATA II/III
PXE v2.1
USB v2.0
USB v3.0 (Optional by PCIe*1 adapter)
AMT7.1
Safety
UL/CUL
DEMKO-GS
IEC60950-1 CB Report/Certificate
Saudi Arabia ICCP(SASO)
Hong Kong SAR (CB report)
Argentina S-mark
EU/EFTA CE Mark and DoC
China CCC Mark
Singapore - PSB
Nigeria - SONCAP
Kenya - KEBS
Russia -GOST
Mexico-NOM
Kazakhstan -GOST-K
Belarus -certificate
Croatia-certificate
EMC
Basic Mandatory Certification
FCC DoC for U.S.A, ICES-003 for Canada
VCCI certification for Japan
BSMI certification for Taiwan
EU/EFTA CE Mark & DoC
C-Tick DoC for Australia and New Zealand
Power line harmonics for Japan
KC for Korea
Environmental
PEP(Internal Certification)
China RoHS
EU RoHS
EU WEEE
Japan J-Moss
California RoHS
USA Chemical Emission Test
New York RoHS
Japan Energy Saving
Korea RoHS and Turkey ROHS
USA EPEAT Gold & Silver
GreenGuard
US Energy Star 5.0/5.2
Energy savings
US Energy Star 5.0/5.2 for select model
EuP 2013 certified with 85Plus Power supply
WHQL
The system gets Windows 7 logo sticker, and Logo Program certified.
ThinkCentre Edge 91 systems may carry other certifications that are not listed above. Please contact your local Lenovo Sales Representatives for more certifications in your area.
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