basilm82,

The system is from 2013 and below are the system specs.

Processor
Processor type Intel Core i5 and i7 Dual Core
Intel Core i7 Quad Extreme
Intel Core i7 Quad Core

L1 cache Up to 32 KB cache depending on processor type
L2 cache Up to 256 KB cache depending on processor type
L3 cache Up to 8 MB cache depending on processor type

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System Information
System Chipset Mobile Intel® 8 Series Chipset
DMA Channels Enhanced DMA Controllers

Two cascaded 8237 DMA Controllers
Supports LPC DMA

Interrupt Levels Interrupt Controller

Supports up to eight legacy interrupt pins
Supports PCI 2.3 Message Signaled Interrupts
Interrupt Levels
Two cascaded 8259 with 15 interrupts
Integrated IO APIC capability with 24 interrupts
Supports Processor System Bus interrupt delivery

BIOS Chip (NVRAM) 96 Mb (12 MB)

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Memory
Type DDR3L
Speed 1600 MHz and 1866 MHz
Connectors 4 SoDIMM Sockets
Intel Core i5 and i7 Dual Core processors two DIMM slots
Intel Core i7 Quad Core and i7 Quad Extreme processors four DIMM slots
Capacity 1 GB, 2 GB, 4 GB, and 8 GB
Minimum Memory 2 GB
Maximum Memory
Intel Core i5 and i7 Dual Core processors 16 GB
Intel Core i7 Quad Core and i7 Quad Extreme processors 32 GB

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Storage
Storage Interface SATA 1 (1.5 Gb/s)
SATA 2 (3.0 Gb/s)
SATA 3 (6 Gb/s)

Drives configurations: one internal 2.5 inch SATA HDD/SSD (SATA3) + one mSATA SSD (SATA2)
Size 1 TB 5400 rpm, 320/500/750 GB 7200 rpm, 320GB 7200 rpm SED FIPS; 128/256/512 GB SATA 3 SSD, 256 GB SATA 3 SSD
A NOTE indicates important information that helps you make better use of your computer. NOTE:
The size of the hard drive is bound to change. For more information, see dell.com.


Optical Drive Interface: SATA 1 (1.5 Gb/s)
SATA 2 (3.0 Gb/s)

Interface Configuration: support ODD modules and Air Bay with SATA HDD option

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Video
Type MXM type-A add-in card
Data bus PCIE x16, Gen3
Video controller and memory: AMD FirePro M5100, 2GB GDDR5 VRAM (Post RTS)
NVIDIA Quadro K1100M, 2GB GDDR5 VRAM
NVIDIA Quadro K2100M, 2GB GDDR5 VRAM

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Audio
Integrated Dual-channel High-Definition audio

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Communication
Network adapter 10/100/1000 Mb/s communication
Wireless Internal wireless local area network (WLAN)
Internal wireless wide area network (WWAN)
Bluetooth wireless support
WiGig support

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Expansion Bus
Bus Type PCI 2.3
PCI Express 1.0 and 2.0
SATA 1.0A , 2.0 and 3.0
USB 2.0 and 3.0

Bus Width PCIe X16
BIOS Chip (NVRAM) 96 Mb (12 MB)

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Display
Type HD (1366 X 768)
FHD (1920 X 1080)
QHD+( 3200 X 1800)

Size 15.6 inches
Dimensions:
Height 210 mm (8.26 inches)
Width 359.80 mm (14.16 inches)
Diagonal 396.24 mm (15.60 inches)
Active area (X/Y) HD (344.23 mm X 193.54 mm)
FHD (344.16 X 193.59 mm)
QHD+ (345.6 X 194.4 mm)

Maximum resolution 3200 X1800 pixels
HD (1366 X 768)
FHD (1920 X 1080)
QHD+( 3200 X1800)

Maximum Brightness HD (220 nits)
FHD (300 nits)
QHD+ ( 400nits)

Operating angle 0° (closed) to 135°
Refresh rate 60 Hz
Minimum viewing angles:
Horizontal/ Vertical HD (40/40/10/30)
FHD (60/60/50/50)
QHD+ ( 80/80/80/80)

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Touchpad
Active Area:
X-axis 80.00 mm
Y-axis 40.50 mm

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Keyboard
Number of Keys United States: 86 keys
United Kingdom: 87 keys
Brazil: 87 keys
Japan: 90 keys

Layout QWERTY/AZERTY/Kanji

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Camera
Type CMOS Sensor
Still Resolution 1280 x 720 Pixels ( Maximum )
Video Resolution 1280 x 720 Pixels @ 30 Frame Per Seconds ( Maximum )
Diagonal 74 degrees

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External Connectors
Audio two connectors for line-out and line-in/microphone
Network Adapter one RJ45 connector
USB 2.0 four
USB 3.0 four
eSATA\USB 2.0 one
Video 15-pin VGA connector, 19-pin HDMI connector, 20-pin DisplayPort connector
Memory card reader SD4.0
Docking port one
Subscriber Identity Module (SIM) port one
ExpressCard one
Smart card (optional) one

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Battery
Type Lithium ion
Dimensions (6-cell / 9-cell / 9-cell long cycle life (LCL)
Depth 82.60 mm (3.25 inches)
Height 190.65 mm (7.50 inches)
Width 20 mm (0.78 inches)
Weight 6-cell – 345 g (0.76 lb)
9-cell – 535 g (1.18 lb)
Voltage 11.10 V
Temperature range:
Operating Charge: 0 °C to 50 °C (32 °F to 158 °F)
Discharge: 0 °C to 70 °C ( 32 °F to 122 °F)
Non-operating -20 °C to 65 °C, 4 °F to 149 °F
Coin-cell battery 3 V CR2032 lithium ion cell

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AC Adapter
Input voltage 90 VAC to 264 VAC
Input current (maximum) 2.50 A
Input frequency 50 Hz to 60 Hz
Output power 180 W
Output current 9.23 A
Rated output voltage 19.50 VDC
Dimensions:
Height 30 mm (1.18 inches)
Width 155 mm (6.10 inches)
Depth 76 mm (2.99 inches)
Temperature range:
Operating 0 °C to 40 °C (32 °F to 104 °F)
Non Operating -40 °C to 65 °C (-40 °F to 149 °F)

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Contactless Smart Card
Supported Smart Cards and Technologies ISO14443A – 160 kbps, 212 kbps, 424 kbps, and 848 kbps
ISO14443B – 160 kbps, 212 kbps, 424 kbps, and 848 kbps
ISO15693
HID iClass
FIPS201
NXP Desfire

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Physical Dimension
Height Touch:

Front: 32.9 mm (1.29 inches)
Back: 36.7 mm (1.44 inches)

Width 376mm (14.80 inches)
Depth 256 mm (10.07 inches)
Weight (Minimum) 2.89 kg (6.38 lb)

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Environmental
Temperature range:
Operating 0 °C to 40 °C (32 °F to 104 °F)
Storage -40 °C to 65 °C (-40 °F to 149 °F)
Relative humidity (maximum):
Operating 10 % to 90 % (non-condensing)
Storage 5 % to 95 % (non-condensing)
Maximum vibration:
Operating 0.66 GRMS, 2 Hz - 600 Hz
Storage 1.3 GRMS, 2 Hz - 600 Hz
Maximum shock:
Operating 140 G, 2 ms
Non-Storage 163 G, 2 ms
Altitude:
Storage 0 m to 10668 m (0 ft to 35,000 ft)
Airborne contaminant level G1 or lower as defined by ANSI/ISA-S71.04-1985

Thank you for your time, full information, and good effort

Sir, excuse me for my not clear questions , and take much of your time .. but my question , to what extent , m4800 , built for last ? can help me in summary ( brief explanation )

1st ....  about the strength of construction, for this 3 kilo. Such as test military specifications, work under difficult climatic conditions, damage from falling from a table or height such as 2 meters, bearing the beatings, or weights (as human weight) ,.. dell site does not explain , & no online videos for test crash ( like dell latitude extream ) ..

2nd .... what about keyboard quality and fluid resistance ?

& 3rd ..... about 15.6 inch monitor screen, do it can  bend ( drape ) it ??  ( I think  dell use LG )

..... some new screens , laptops , smartphones ...,  sony , LG , samsung .. etc , it can  drape little bit .

This is not a ruggedized system - it's not designed for use in adverse environments.

No, the screen is not flexible.

If you buy from one of these third parties, do so  VERY carefully.  You could end up with an old-stock system (and therefore no warranty, as Dell generally won't activate a warranty on a system that shipped to the original purchaser  more than a year ago), or you could wind up with a system of unknown history and with a service tag that's not legitimate.  Or you could end up with a password protected system.

good notes .. i well fouce on DELL Refurbished  or open box with warranty until october 2017 , or new in DELL box ..

whay the ( his is not a ruggedized system - it's not designed for use in adverse environments. ) meaning ? i want to know Body strength, material quality, accident and fluid resistance , not the system .... thank you ejn63

Everything you're asking points to the Latitude Rugged series being more suitable to your application than the one you're considering.

This is not a drop- and spill-resistant system.  The Latitude Rugged is what you need.

www.dell.com/.../rugged

how m4800 about 3 kg not good ? i work in 3d models (architect) & rendering ? & play forza ? this 4800 have 2 cooling (i am Interested in this) & 15'6 screen ...... thank you for your time ejn63

The system can handle those applications without issue - but if you're looking for a rugged system for use outdoors or in the field, this is not the system you want.

THANK YOU ejn63 FOR YOUR TIME ..