Detailed specifications - ThinkPad T400s
CommunicationsOperating environmentStorage

  • High Definition (HD) Audio
  • Conexant CX20585 codec
  • Volume up, down, and mute buttons
  • Mic mute button
  • Embedded numeric keypad and integrated UltraNav dual-pointing system with wide touch pad below keyboard, Tap Zones, scrolling regions label, multi-touch; and TrackPoint and customized touch pad for the ultimate in pointing flexibility.
  • ThinkVantage button, individual speaker volume up, down, and mute buttons, mic mute button
  • The keyboard has a Fn key which is a special key and is located in the lower left corner. The Fn key allows the user to instantly activate the following operational features by pressing the Fn key and a designated function key:
    • Standby/Suspend/Hibernation
    • Switching between Display device
    • Multimedia
  • Fingerprint reader is integrated into the palm rest of the ThinkPad notebook computer to prevent unauthorized access to your notebook and data
  • Spill-resistant
  • ThinkLight keyboard light to illuminates the keyboard to improve visibility in low-light conditions
  • PC3-8500 Non-Parity (NP) Double Data Rate Three (DDR3) Technology
  • Two SO-DIMM Slots
    • The use of 1067 MHz SO DIMM memory is recommended for this system.
  • 1 GB, 2GB, or 4GB memory
  • Supports up to 8GB maximum memory
  • 2GB, 4GB Intel Turbo Memory (selected models)
    Note: Only 64-bit operating systems support more than 3GB of system memory (RAM).
  • All systems come with the UltraNav dual-pointing system, featuring TrackPoint and customized touch pad for the ultimate in pointing flexibility is a part of the keyboard. The TrackPoint features Press-to-Select, Internet scroll, and magnifying glass for accurate and convenient control.
  • Premiere performance and ultraportability; two spindles
  • Available processors are:
    • Intel® Core™ 2 Duo processor SP9400 (2.40 GHz)
      • Intel HD Boost,1066MHz system bus, and 6MB L2 cache
    • Intel® Core™ 2 Duo processor SP9600 (2.53 GHz)
      • Intel HD Boost,1066MHz system bus, and 6MB L2 cache

  • 1Gb Ethernet installed on systems via the system board.
  • Intel WiFi Link 5100 Mini PCI Express wireless adapter on selected models.
  • Intel WiFi Link 5300 Mini PCI Express wireless adapter on selected models.
  • Intel WiMAX/WiFi Link 5150 PCI Express wireless adapter on selected models.
  • ThinkPad 11b/g Wireless LAN Mini PCI Express Adapter III on selected models.
  • Qualcomm® UNDP1 - Wireless WAN cardon selected models
  • Ericsson F3507g Wireless WWAN Minicard for Verizon and AT&T on selected models
  • Bluetooth with Enhanced Data Rate (BDC-2.1)

  • One 34-mm ExpressCard slot or 5-in-1 Media Card Reader slot
External ports
  • Two USB ports version 2.0
  • One eSATA/USB combo port
  • Additional connector supports the optional Port Replicator, advanced dock, and advanced mini-dock.
  • Audio ports
    • External stereo speakers or headphone
    • Dual array microphone
    • Combo audio/mic jack
  • External monitor (VGA DB-15, DisplayPort)
  • Built-in RJ-45 connectors for LAN connection

Operating environment
Physical specifications

For systems with a 358.1-mm (14.1-in) TFT display:


  • Width: 337 mm (13.3 in)
  • Depth: 241 mm (9.5 in)
  • Height: 21.1 to 25.9 mm (0.83 to 1.02 in)
  • Configured system weight: Starting at 1.77 kg (3.9 lb)


  • Maximum altitude without pressurization: 3048 m (10,000 ft)
  • Temperature
    • At altitudes up to 2438 m (8000 ft)
      • Operating: 5.0°C to 35.0°C (41°F to 95°F)
      • Non-operating: 5.0°C to 43.0°C (41°F to 109°F)
    • At altitudes above 2438 m (8000 ft)
      • Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)
  • Relative humidity:
    • Operating: 8% to 80%
  • Non-operating: 5% to 95%

Note: When you charge the battery pack, its temperature must be at least 10°C (50°F).

Heat output

  • 65 W (222 Btu/hr) maximum or 90 W (307 Btu/hr) maximum (depending on the model)


Note: All weight and dimensions are approximate.

Agency approvals
  • FCC Part 15 (USA)
  • VCCI Class 2 (Japan)
  • CISPR22 (EMEA/Australia)
  • CE Mark immunity (EMEA)
  • Harmonics/Flicker (EMEA/Japan)
  • MPR-II/MPR-III (Sweeden)
  • UL-60950 (USA)
  • C-UL (Canada)
  • CB Report (EMEA)
  • AS/NZS DoC (Australia)
  • EMR (Australia)
  • KCC (Korea)
  • CCC (China)
  • BSMI (Taiwan)
  • GOST (Russia)
  • GOST (Ukraine)
  • Jugoinspekt (Serbia)
  • NOM (Mexico)
  • SASO (Saudi Arabia)
  • Energy Saving (Japan)
  • Energy Star (USA)

AC Adapter
  • The battery pack is an internal power source to the computer when the ac adapter is not available. The battery pack is rechargeable and is charged using the ac adapter with the system.
  • You can determine how much battery power remains by using the Fuel- Gauge ThinkPad utility program. This displays the percent charge remaining, whether one or two batteries are in the system.
  • A different optional Li-Ion battery pack, the Ultrabay Li-Polymer battery, fits into the Ultrabay Slim so that two batteries can be installed to increase battery operating time.
  • A six cell Li-Ion battery pack is shipped with the system.
  • An optional three-cell Ultrabay Li Polymer Battery II for longer battery operation is available.
  • Li-Ion battery pack: 6 cell, 3.9 Ah, 312 g (0.69 lb)
  • Li-Polymer battery pack: 3 cell, 235 g (0.52 lb). Click here for more information
  • Battery life:
    • 6-cell: up to 6.5 hr;
    • 6-cell plus Ultrabay battery: up to 11 hr
  • Nominal voltage: 10.8 V DC
  • Capacity: 4.0 AH


  • (*1) Battery life (and recharge times) will vary based on many factors including screen brightness, applications, features, power management, battery conditioning and other customer preferences.

  • Hardware Password Manager (HPM)
  • Intel AntiTheft (AT)
  • Security Chip
  • Fingerprint reader on selected models, offers users a convenient solution, authenticate at system startup and log on to Windows with a swipe of your finger.
  • Locking device in the security slot provides physical security.
  • The ThinkPad Embedded Security Subsystem provides for authentication and encryption of data communications.
  • A Power-on password (POP) protects the system from unauthorized use. If a POP is set, the password prompt appears:
    • Each time the system is turned on
  • When the system is returned to normal operation from suspend mode
  • A Supervisor Password provides a higher level of security than the POP. The Supervisor Password protects the system functions from being used by unauthorized users,and protects the hardware configuration from unauthorized modification. The Supervisor Password prompt appears:
    • When the BIOS setup screen is accessed.
  • A Hard Drive Password (HDP) protects hard drive data from unauthorized users. Once HDP is set, data on the hard drive cannot be accessed without the correct HDP. Because the HDP is stored in the hard drive, the data remains protected even if the hard drive is removed to another system. The HDP password prompt appears:
    • Each time the system is turned on.

Operating system
  • Windows XP Professional
  • Windows Vista Starter Edition (32-bit)
  • Windows Vista Home Basic (32-bit)
  • Windows Vista Home Premium (32-bit)
  • Windows Vista Business (32-bit)
  • Windows Vista Business (64-bit)
  • Windows Vista Ultimate (32-bit)


  • Previous versions of these operating systems are not supported.
  • Operating systems other than those preinstalled on the systems may not provide full-feature functionality

Optical drive
  • Ultrabay Slim DVD/CD-RW combo drive
  • Ultrabay Slim DVD-RAM/RW drive
  • Ultrabay Slim Blu-ray Disc drive
Floppy drive
  • Only available using USB, UltraBay Slim Media, or Docking solution
Hard drive features
  • 120 GB, 5400 rpm, MicroSATA Generation 2 interface
  • 250 GB, 5400 rpm, MicroSATA Generation 2 interface
  • Supports one additional hard drive which can be used concurrently to offer expanded storage in the Ultrabay Slim Media Bay.
  • Although you can upgrade the hard drive, it is not designed to be removed and reinserted on a regular basis. Repeated and frequent removal, for purposes other than to upgradefor greater capacity, can cause damage to the system. The Ultrabay Slim hard drive adapter is designed to provide this flexibility with a second hard drive in the Ultrabay Slim.
  • The Hard Drive Active Protection system protects your hard drive when the shock sensor inside your ThinkPad computer detects a situation that could potentially damage the hard drive.

Note: Supported hard disk drives depend on the model.

Solid state drive features
  • Standard 64GB, 80GB, 128GB, 160GB, and 256GB solid state drive sizes.
  • Fast, reliable, lightweight, and energy-efficient.
  • Faster data rates and boot-up times than a 7200 rpm mobile hard disk drive (HDD).
  • Very low failure rates.
  • Able to withstand harsher environmental and vibration conditions than a mobile HDD.
  • Consumes less battery power than a mobile HDD.
  • Significantly lighter than a mobile HDD.

  • 14.1-inch, native 262K colors, WXGA+ (1440 × 900 resolution) Slim LED Backlight LCD

  • Support for a external monitor is through VGA DB-15 connector
  • Support for digital monitor via DisplayPort (supports single-link DVI-D via cable 45J7915)
  • Maximum external resolution: 2560x1600 (DisplayPort)@60Hz; 2048x1536 (VGA)@75Hz; 1920x1200@60Hz (single-link DVI-D via cable 45J7915
  • All displays are measured diagonally.
Graphic Controller
Video chipsets:
  • Intel Graphics Media Accelerator 4500MHD (GMA 4500MHD), in GS45


  • Support for a external monitor is through VGA DB-15 connector
  • Support for digital monitor via DisplayPort (supports single-link DVI-D via cable 45J7915)
  • Maximum external resolution: 2560x1600 (DisplayPort)@60Hz; 2048x1536 (VGA)@75Hz; 1920x1200@60Hz (single-link DVI-D via cable 45J7915
  • All displays are measured diagonally.

If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Country Availability
Document ID : PD009938
Legacy Document ID : MIGR-72868
Last Updated :
Copyright © Lenovo 2013, all rights reserved
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