THINKCENTRE 
M91/M91p 
DESKTOP
Lenovo®ThinkCentre®M91/M91p Desktop
powered by Intel®Core™ i5-540M processor.
Kensington MicroSaver Cable Lock 
from Lenovo (73P2582)
• Help reduce theft and increase physical 
asset protection
• Secure the ThinkCentre system or 
a monitor
Lenovo Laser Mouse (41U3074)
• High performance, fully programmable, superior comfort laser mouse.
• High-definition with 2000 dpi resolution for extraordinary accuracy and increased responsiveness 
which results in smoother tracking
Lenovo L2021 Monitor (4449-HB1)
• 20-inch wide display supporting 
1600 x 900 resolution with VGA Analog 
and DVI digital inputs
• Supports ThinkVision Soundbar (45K1263)
www.lenovo.com/support/graphiccards
www.lenovo.com/support/desktopmemorycompatibility
www.lenovo.com/support/desktopmemorycompatibility
LENOVO®THINkCENTRE®M91/M91p DESkTOP OPTIONS
Monitor and Monitor Accessories
Productivity and Performance Accessories Security Accessories
Additional Accessories
ThinkCentre Extend Arm (57Y4352)
• Improve viewing comfort using tilt 
adjustment or pivot for portrait or 
landscape viewing
• Extend forward or collapse backward 
to move monitor out of the way when 
not in use
• 10.6-inches (270-mm) of height adjustment
www.lenovo.com/support/monitoraccessories
Lenovo ThinkVision®L1951p Monitor 
(2248-HB6)
• 19-inch wide display supporting 
1440 x 900 resolution with VGA Analog 
and DVI digital inputs
• Supports ThinkVision Soundbar 
(45K1263)
ThinkVision Soundbar 
(45K1263 – U.S. Power Adapter)
• Adds stereo-audio sound without sacrificing 
valuable desk space
• Supports Dual Speaker with 3+3 (total) watts 
of output
• Offers Integrated headphone and microphone jacks
• Comes with external AC power adapter
• Is compatible with the following ThinkVision 
monitors: L2440pw, L2440xw, L2251xw, L2251pw, 
L2250pw, L215, L2060, L1951p, L1900p and L1711
PC3-10600 DDR3-1333 
UDIMM Memory
• Lowest cost method to boost system performance
• 1GB PC3-10600: 57Y4389
• 2GB PC3-10600: 57Y4390
Lenovo Fingerprint USB Keyboard 
(73P4730)
• Replace Windows passwords 
with fast, secure access using 
your fingerprint
Lenovo 512MB NVIDIA®GeForce®
310 DMS59 Dual-DVI, Dual-VGA 
Graphics Card (57Y4167)
• Boost graphics performance
• Attach two DVI digital or 
VGA analog monitors
www.lenovo.com/support/keyboards
www.lenovo.com/support/security
 www.lenovo.com/think
©2011 Lenovo. All rights reserved.
Availability: Offers, prices, specifications and availability may change without notice. Lenovo is not responsible for photographic or typographic errors. Warranty: For a copy of applicable warranties, write to: Warranty Information, 500 Park Offices Drive, RTP, NC, 27709, Attn: Dept. ZPYA/B600. Lenovo makes no 
representation or warranty regarding third-party products or services. Trademarks: Lenovo, the Lenovo logo, Rescue and Recovery, ThinkStation, ThinkVantage and ThinkVision are trademarks or registered trademarks of Lenovo. Microsoft, Windows and Vista are registered trademarks of Microsoft Corporation. Intel, 
the Intel logo, Intel Core, Core Inside, Xeon and Xeon Inside are registered trademarks of Intel Corporation in the U.S. and other countries. Other company, product and service names may be trademarks or service marks of others. 
Visit Lenovo.com/safecomputing periodically for the latest information on safe and effective computing.
WW_WW_DS_Q4-11_19908_M91-M91p_MCP2_draft-3_Jan-25.indd 5 1/27/2011 12:56:16 PM