DRAM bus width |
64-bit |
Flash EPROM |
SPI 32Mbits + 64Mbits |
PCIe Gen1 bus |
100 MHz |
External Bus Frequency |
DMI (5GT/s) |
Processor Types |
Intel Core i3 series<br>Intel Core i5 series<br>Intel Core i7 series |
L3 cache |
Up to 8 MB |
Memory |
Connector: Two SoDIMM slots<br>Module Capacity per Slot: 8 GB<br>Type: DDR3 SDRAM 1600 MHz<br>Minimum Memory: 16 GB |
Storage with Express Card I/O and Discrete Graphic Configuration |
No mSATA support on both Latitude E5440 and Latitude E5540. For other configurations, mSATA is supported on both Latitude E5440 and Latitude E5540. |
Audio Type |
Four-channel high definition audio |
Audio Controller |
Realtek ALC3226 |
Graphics Type |
Integrated on system board |
Graphics Controller (UMA) |
Intel HD Graphics 4600 |
Graphics Controller (Discrete) |
Nvidia GeForce (N14M-GE) Discrete Graphics Card, 2 GB Graphics |
Network Adapter |
10/100/1000 Mb/s Ethernet (RJ-45) |
Wireless |
Internal WLAN, WWAN (E5440 only) |
Audio (Optional) |
Microphone/stereo headphone/speakers connector |
Video Ports |
15-pin VGA, 19-pin HDMI, RJ-45 |
USB Ports |
4-pin USB 2.0 (E5440), 4-pin USB 2.0 (E5540), 2 USB 3.0 |
Memory Card Reader |
8-in-1 memory card reader |
Docking Port |
One |
Display Type and Size (Latitude E5440) |
HD (1366x768), WLED, 14.0" |
Display Type and Size (Latitude E5540) |
HD (1366x768), WLED, 15.6" |
Display Maximum Resolution |
1366 x 768 pixels (Latitude E5440)<br>1920 x 1080 pixels (Latitude E5540) |
Display Maximum Brightness |
200 nits (Latitude E5440)<br>220 nits for HD, 300 nits for FHD (Latitude E5540) |
Battery Type |
4, 6, or 9-cell "smart" lithium-ion |
Battery Dimensions (4-cell) |
Height: 20.00 mm, Width: 208.00 mm, Depth: 48.08 mm, Weight: 240.00 g, Voltage: 14.8 VDC |
Power Adapter Type |
65 W (Latitude E5440), 90 W (Latitude E5540) |
Power Adapter Input Voltage |
100 VAC to 240 VAC |
Power Adapter Output Power |
65 W (Latitude E5440), 90 W (Latitude E5540) |
Power Adapter Output Current |
3.34 A (65 W), 4.62 A (90 W) |
Power Adapter Output Voltage |
19.5 +/– 1.0 VDC |
Physical Dimensions (Latitude E5440) |
Touch: Height (Front - 27.70 mm, Back - 32.20 mm), Width - 338.00 mm, Depth - 235.00 mm |
Physical Dimensions (Latitude E5540) |
Non-Touch: Height (Front - 25.20 mm, Back - 28.65 mm), Width - 379.00 mm, Depth - 250.50 mm |
Weight (Minimum) |
1.99 kg (Latitude E5440), 2.42 kg (Latitude E5540) |
Temperature Range (Operating) |
0 °C to 35 °C |
Relative Humidity (Operating) |
10% to 90% (non-condensing) |
Altitude (Operating) |
–15.24 m to 3048 m (-50 ft to 10,000 ft) |
Airborne Contaminant Level |
G1 as defined by ISA-71.04–1985 |