T420s

Machine Type

 * 4170, 4171, 4173, 4174

Standard Features

 * One of the following second generation Intel Core processors (code name: "Sandy Bridge"):
 * Intel® Core™ i3-2310M (2.1GHz, 3MB L3, 1333MHz FSB) (models with this CPU may be called T420si)
 * Intel® Core™ i3-2350M (2.3GHz, 3MB L3, 1333MHz FSB) (models with this CPU may be called T420si)
 * Intel® Core™ i5-2520M (2.5GHz, 3MB L3, 1333MHz FSB)
 * Intel® Core™ i5-2540M (2.6GHz, 3MB L3, 1333MHz FSB)
 * Intel® Core™ i7-2620M (2.7GHz, 3MB L3, 1333MHz FSB)
 * Intel® Core™ i7-2640M (2.8GHz, 3MB L3, 1333MHz FSB)
 * One of the following video graphics
 * Intel HD Graphics 3000 (integrated Sandy Bridge GPU)
 * nVidia NVS 4200m Optimus
 * One of the following displays
 * 14.1" TFT 16:9 display with 1600x900 (HD+) resolution
 * 4, 6, or 8 GB PC3-10667 memory standard upgradable to 8 GB (Also see the unofficial maximum memory specs for this model.)
 * One of the following storage options:
 * 250 GB 5400 rpm 2.5" SATA HDD (7 mm height)
 * 160 or 320 GB 7200 rpm 2.5" SATA HDD (7 mm height)
 * Full Disk Encryption (FDE) Available on some models
 * 128 GB 2.5" SATA II SSD (7mm height)
 * 720p HD Integrated camera
 * Unknown models supported. Camera will have lower light sensitivity than model available in 410s'
 * MiniPCI Express slot 1 (27mm Half) with one of the following:
 * None (empty)
 * Intel® Centrino® Ultimate-N 6300 3x3 AGN
 * Intel® Centrino® Advanced-N + WiMAX 6250 2x2 AGN
 * Intel® Centrino® Advanced-N 6205 2x2 AGN
 * Intel® Centrino® Wireless-N 1000 1x2 BGN
 * ThinkPad BGN (RealTek) 1x1 BGN
 * MiniPCI Express slot 2 (51mm Full) with one of the following:
 * None (empty)
 * Gobi™ 3000 Sierra Wireless EV-DO/HSPA WWAN Minicard
 * Ericsson HSPA+ WWAN Minicard (F5521gw)
 * LeadCore TD-SCDMA WWAN Minicard (LC5730D)
 * Huawei EV-DO WWAN Minicard (EM660)
 * Intel® 80GB Micro Solid State Drive, Serial ATA (mSATA)
 * Bluetooth on select models
 * Intel Gigabit Ethernet (10/100/1000) PCI-Express
 * ExpressCard/34 slot or Ricoh 5-in-1 MultiCard Reader (MS not supported on Linux)
 * Integrated Fingerprint Reader on select models
 * UltraNav (TrackPoint / Touchpad combo)
 * Trusted Computing Group TPM 1.2
 * Active Protection System
 * Intel Active Management Technology (AMT)
 * USB x 3: 1 USB 2.0, 1 USB Always-on, 1 USB 3.0
 * Size: 13.5in x 9.1in x 0.83-1.02in (343mm x 230mm x 21-26mm)
 * Weight: 3.94 lb (1.79 kg) with optical drive

Original OS

 * Windows 7 Professional
 * Windows 7 Starter
 * Windows 7 Home Basic
 * Windows 7 Home Premium
 * Windows 7 Ultimate
 * Windows 7 Enterprise