2. Model ASUS ZENBOOK™ UX21 (Ultrabook™) ASUS ZENBOOK™ UX31 (Ultrabook™)
CPU Intel® Core™ i7 2677M Processor Intel® Core™ i7 2677M Processor
Intel® Core™ i5 2467M Processor Intel® Core™ i5 2557M Processor
Intel® Core™ i3 2367M Processor
Operating System Genuine Windows® 7 Professional 64bit Genuine Windows® 7 Professional 64bit
Genuine Windows® 7 Home Premium 64 bit Genuine Windows® 7 Home Premium 64 bit
Genuine Windows® 7 Home Basic 64 bit Genuine Windows® 7 Home Basic 64 bit
This version contains all product updates (SP1) This version contains all product updates (SP1)
Z‐height 3mm at the front; 9mm at the rear 3mm at the front; 9mm at the rear
Main Memory DDR3 1333MHz 2GB/4GB (on board) DDR3 1333MHz 4GB (on board)
Screen 11.6 (16:9) 13.3 (16:9)
Backlight/ 450 nits HD 1366x768 450 nits HD+ 1600X900
Resolution
Instant on Always resume in 2 seconds Always resume in 2 seconds
USB charger+ Y Y
I/O port
I/O t 6 (USB2.0 / USB3.0 / audio jack / DC jack / microHDMI /
6 (USB2 0 / USB3 0 / audio jack / DC jack / microHDMI / 7 (USB2.0 / USB3.0 / audio jack / DC jack / microHDMI /
7 (USB2 0 / USB3 0 / audio jack / DC jack / microHDMI /
miniVGA) miniVGA / SD card reader)
USB3.0 1 Port 1 Port
SSD Generation SATAIII SSD (64G/128G/256G) SATAIII SSD (128G/256G)
BT Bluetooth 4.0 Bluetooth 4.0
Battery 35W (5+ hrs) 50W (7+hrs)
Mic MEMS MIC (Digital MIC) MEMS MIC (Digital MIC)
Keyboard 268 Chiclit KB 286 Chiclit KB
Camera 0.3M 0.3M
Audio Bang & Olufsen ICEpower® SonicMaster Bang & Olufsen ICEpower® SonicMaster

3.  F i hild PBKAF FBKFJ FDMC 7696
Fairchild PBKAF FBKFJ FDMC 7696
 Fairchild PBKAF FDMC 0310AS
 Richtek RT8166B
4GB DDR3 system memory
 Intel Core i3/i5/i7 mobile processor
 SATA ADATA XM11 SSD/SanDisk SSD
SATA, ADATA XM11 SSD/SanDisk SSD
 Intel QS67 PCH
 Texas Instruments BQ24740;
Multi‐Cell Synchronous Switch‐mode Battery Charger
 minicard slot;
AzureWave AW‐NB086 WiFi/BT combo module

4. 4GB DDR3 system memory
 ITE IT8572G embedded controller
ITE IT8572G embedded controller
 Fresco Logic FL1000‐2Q0; USB 3.0 controller
 Richtek RT8206A

6. Manufacturer Device Function
▼Processor
Intel Intel Core i3/i5/i7 processor
p Processor + Intel HD 3000 graphics
g p
▼Memory
Elpida Elpida J4216BASE-DJ-F 4GB, onboard DDR3 system memory
▼Chipset
Intel Intel QS67 PCH
▼Radio Frequency
AzureWave AzureWave AW-NB086 Atheros AR9004WB-1NG
‧Atheros AR9485 and AR3012
‧802 11n WiFi + Bluetooth 4 0
‧802.11n 4.0
▼EC
ITE IT8572G System power management controller
▼Audio
Realtek ALC269 HD Audio codec

7. Manufacturer Device Function
▼Storage
ADATA/SanDisk
/ XM11 SSD(128GB)/SanDisk(256GB)
( ) ( ) SandForce SF-2281VB1 SATA SSD controller
▼User Inputs
ELAN 33200V-3600 1139 BW118V1 Touchpad controller
▼Others
FDMC7696
Fairchild
FDMC0310AS
Fresco Logic FL1000 USB 3.0 host controller
Texas Instruments BQ24740 Multi-Cell Synchronous Switch-mode Battery Charger
y y g
Macronix MX25L3206E 32M-BIT CMOS serial flash
RT8166B
Richtek
RT8206A High-Efficiency, Main Power Supply Controller for Notebook Computers
Linear Technology 3857