Signal-to-Noise >85dB
Distortion THD<1% ( 8|¸¡¡é1KHz )
Input sensitivity 458mV
Input impedance 47K|¸
Swans M-50WS
Acoustic System
System Type 2-way 2nd order vented satellite speaker system
Drivers Configuration Woofer:3" Mid-bass driversTweeter: 20mm aluminum dome tweeter
Frequency Range 110Hz-20kHz
Harmonic Distortion 210Hz-20kHz¡¨¹1%(2.83V/1m)
Sensitivity 81dB (2.83V/1m)
Nominal Impedance 8|¸
Power Range 1-15W
Other Parameter
Finished Walnut / Black piano lacquer
Dimension (W¡¨¢H¡¨¢D(mm)) 140¡¨¢140¡¨¢180
Net Weight 1.6kg
Swans M-50WSUB
Acoustic System
System Type Active vented box sub system
Drivers Configuration Woofer: 6.5" subwoofer driver
Frequency Range 38Hz-300Hz
Harmonic Distortion 60Hz-300Hz¡¨¹1%(2.83V/1m)
Sensitivity 80dB (2.83V/1m)
Nominal Impedance 8|¸
Power Range 10-120W
Other Parameter
Finished Walnut / Black piano lacquer
Dimension (W¡¨¢H¡¨¢D(mm)) 285¡¨¢327¡¨¢251
Net Weight 10Kg
Specification
item
value
Brand Name
for dell
Processor Manufacture
Intel
Memory Capacity
16GB
Processor Type
Intel I7
Graphics Card Type
Integrated Card
Hard Drive Capacity
512GB
Screen Size
14.1"
Display Ratio
16:9
Display resolution
1920x1080
Plugs Type
Other
Hard Drive Type
SSD
Video Memory Type
GDDR3
Operating System
Windows 10pro
Processor Main Frequency
2.66GHz
Processor Core
Quad Core
PPI
132
Refresh Rate
65HZ
WLAN
WiFi 802.11 a/b/g
Keyboard language
English
Private Mold
yes
Appearance
Slight scratch
Grade
A+ ( Almost new )
Accessories
With third party accessories
Model Number
latitude e7490
Condition
Original Refurbished
Products Status
Official Refurbished
Quality
99% New/98%new/95%new
Type
Netbook Notebook
Keyword
Second Hand Refurbished Laptop Computer
Style
Ultrathin Portable
Hot sale with
Labtop
Selling point
Ready
Port
3*USB3.0
Network
Unlocked
Model
HP Probook 840 G5
CPU
Intel Core i5 8th
Graphics
AMD Radeon RX 540
Display pixel
1366*768(14.1'')
Camera
Dedicated Card
Operating System
Windows10
Battery
3-cell lithium battery
Colour
Silver
Size
326-234*17.9mm
Weight
1.48kg
Hard disk capacity
8G+256GB
Interface
2xUSB, USB Type-C hdmi Headphone/Microphone 2 in 1 RJ45 SIM card slot Expansion dock interface
The Raspberry Pi 4 Model B is the latest product in the popular Raspberry Pi range of single board computers. It offers ground-breaking increases in processor speed, multimedia performance, memory, and connectivity compared to the prior generation Raspberry Pi 3 Model B+ while retaining backward compatibility and similar power consumption. For the end user, Raspberry Pi 4 Model B provides desktop performance comparable to entry-level x86 PC systems.
Key features include a high-performance 64-bit quad-core processor, dual-display support at resolutions up to 4K via a pair of micro-HDMI ports, hardware video decode at up to 4Kp60, up to 8 GB of RAM, dual-band 2.4 / 5.0 GHz wireless LAN, Bluetooth 5.0, Gigabit Ethernet, USB 3.0, and PoE capability (via a separate PoE HAT add-on). The dual-band wireless LAN and Bluetooth have modular compliance certification, allowing the board to be designed into end products with significantly reduced compliance testing, improving both cost and time to market.
Features
1.5 GHz quad-core ArmCortex-A72 CPU
VideoCore VI graphics
4kp60 HEVC decode
True Gigabit Ethernet
2 USB 3.0 and 2 USB 2.0 ports
2 micro-HDMI ports (1 4kp60 or 2 4kp30)
USB-C for input power, supporting 5 V / 3 A operation
2 GB, 4 GB, and 8 GB LPDDR4 memory SKUs
