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Product Comparison

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Advantech Co., Ltd
ERT310
$594.53
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avocor limited
AVF-7550
$10,474.00
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Kramer Electronics LTD
GALIL-4-C(PAIR)
$281.51
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Corsair
CMFSS3B-1TB
$227.69
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Cyber Acoustics, LLC
CVL-2005
$39.00
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Logitech
914-000070
$106.00
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Manufacturer Advantech Co., Ltd
avocor limited
Kramer Electronics LTD
Corsair
Cyber Acoustics, LLC
Logitech
Manufacturer Part Number ERT310
AVF-7550
GALIL-4-C(PAIR)
CMFSS3B-1TB
CVL-2005
914-000070
Manufacturer Website Address https://www.advantech.com
https://avocor.com
https://www.kramerelectronics.com
https://www.corsair.com
https://www.cyberacoustics.com
https://www.logitech.com
Brand Name B+B SmartWorx
avocor
Kramer
Corsair
Cyber Acoustics
Logitech
Product Model ERT310
AVF-7550
4-C
- CVL-2005
-
Product Name SPECTRE RT Wired Ethernet Router
AVF-7550 Touchscreen LCD Monitor
Galil 4-C 4-Inch, 2-Way Closed-Back Ceiling Speakers
Flash Survivor Stealth 1TB USB 3.0 Flash Drive
Olympus USB Professional Recording Mic
Crayon Stylus
Marketing Information The SPECTRE RT industrial router connects Ethernet equipment in tough environments where office-grade equipment can't handle the job. With Ethernet, USB, I/O and auxiliary ports it's a flexible device with the built-in ability to handle multiple data communications protocols and to fit into virtually any network topology.

The SPECTRE RT supports the creation of VPN tunnels using IPsec, OpenVPN and L2TP. It supports DHCP, NAT, NAT-T, DynDNS, NTP, VRRP, control by SMS, and numerous other functions, as well as additional software like SmartCluster VPN Server and R-SeeNet. A password-protected Web interface allows users to configure and manage the SPECTRE RT from remote locations. The router can automatically upgrade its configuration and firmware from the operator's central server, allowing for simultaneous mass reconfiguration of every router on the network.

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The Galil 4-C Closed-back Compact Ceiling Speaker features a multi-tap power transformer for selecting 8Ω (bypassing the transformer) or 70V/100V power settings that are suitable for an array installation. The Galil 4-CO open-back version is also available.

  • Type - 2-way coaxial speaker.
  • Woofer - 4" polypropylene cone.
  • Tweeter - 0.5" Mylar dome.
  • Impedance - 8Ω.
  • Power Handling - 30W RMS, 80W continuous program.
  • Transformer Taps - 70V: 30W/15W/7.5W/3.7W/Off (Lo-Z); 100V: 30W/15W/7.5W/Off (Lo-Z).
  • UL 1480 & 2043 Listed
  • Package Includes - 2 speakers (1 pair), ceiling mounting kit, template and user manual.
  • Installation Dimensions - External diameter: 19.5cm (7.68"); cutout diameter: 16.7cm (6.57")

Military-style data transport with USB 3.0 and USB 2.0 compatibility

Your files are important - that's why you're taking them with you. Flash Survivor Stealth® USB 3.0 flash drives help keep them safe. The anodized, aircraft-grade aluminum housing is waterproof to 200 meters, vibration-resistant, and shock-resistant.

USB 3.0 speed

If you move a lot of data, you've noticed that as convenient as USB flash drives are, they never seem to be as fast as you'd like. USB 3.0 changes the game. Flash Survivor Stealth USB 3.0 offers read speeds up to four times faster than traditional USB 2.0 drives. It's fast enough to view most videos directly from your Flash Survivor Stealth, without having to take the usual extra step of copying it to a hard drive first.

High-performance USB 2.0 support

Not only is Flash Survivor Stealth USB 3.0 backward compatible with USB 2.0 - it offers great performance, too. No matter how up-to-date your PC is, you'll be able to quickly take care of moving your files and be off on your next adventure.

Universal compatibility

It works with Microsoft® Windows®, Mac® OS X, and even Linux without drivers, and there's no software to install. Just plug it in, and go. If your computer has a USB 2.0 or 3.0 connector, you can use Flash Survivor Stealth USB 3.0.

Proven reliability

With almost two decades of building enthusiast-grade memory and components, we've earned a reputation for quality, compatibility, and performance. Need help? We're available by phone call, email or web forum.


The perfect microphone for live blog streams, podcast recordings, voice-overs, interviews, skype video conferencing, conference calls, FaceTime, vocals and music recordings. Compatible with Mac, PC, and other USB ready systems.

FEATURES

  • USB connection with Micro USB cable
  • Cardioid (directional) recording pattern
  • Sampling rates: 44.1KHz / 16bit
  • Frequency response: 40Hz - 18KHz
  • Max SPL: 120dB
  • LED power indicator
  • Adjustable stand
  • 1/4" threaded bottom for alternate mic-stand use

DISCOVER WHAT'S POSSIBLE

Sketch, write and annotate with Logitech Crayon for iPad, powered by Apple Pencil technology

Logitech Crayon is a versatile, pixel-precise digital pencil for iPad (all models with USB-C ports) that seamlessly boosts your productivity and lets you add a touch of flair to any task or project.

Logitech Crayon is powered by Apple Pencil® technology so you can start creating, collaborating, and learning on countless apps instantly.

ANNOTATE

Easily annotate PDFs and other documents

TAKING NOTES

Comfortably take notes in your own handwriting

SKETCHING

Sketch diagrams, prototypes, and more

MAKING LISTS

Write up and check off vital To-Do lists

POWERED BY | APPLE PENCIL TECHNOLOGY

Uses Apple Pencil technology so you can write and draw naturally without fear of missing a single line or detail thanks to pixel-perfect precision and imperceptible lag.

JUST TURN ON AND WRITE

Simply slide the off/on button down and start writing right away - it's that easy. Logitech Crayon connects to iPad instantly with no complex Bluetooth pairing or other delays.

THE PERFECT LINE EVERY TIME

Need a thicker or thinner line? Just tilt. Logitech Crayon has a smart tip which dynamically adjusts line weight as you naturally write-just like a regular pencil.

WELCOME TO USB-C

Say goodbye to cable confusion. Logitech Crayon uses the same USB-C cable as iPad Pro, iPad Air, and the NEW iPad (10th generation) for quick, reliable charging.

More from the Manufacturer


Product Type Router
LCD Touchscreen Monitor
Speaker
Flash Drive
Microphone
Stylus
Total Number of Ports 2
- - - - -
USB Yes
Yes
- - - -
Powerline No
- - - - -
Management Port Yes
- - - - -
Token Ring Port No
- - - - -
Serial V.35 Interface No
- - - - -
Number of Network (RJ-45) Ports 2
- - - - -
Ethernet Technology Fast Ethernet
- - - - -
Network Technology 10/100Base-TX
- - - - -
Security Features 
  • VPN
  • NAT
  • PAT
  • Port Filtering
  • Address Filtering
  • IPsec
  • L2TP
  • OpenVPN

- - - - -
Standard Memory 512 MB
- - - - -
Memory Technology DDR SDRAM
- - - - -
Flash Memory 128 MB
- - - - -
PoE (RJ-45) Port No
- - - - -
Input Voltage 12 V DC
- - - - -
Redundant Power Supply Supported No
- - - - -
Power Source AC Adapter
- - - - -
Form Factor Desktop
- Ceiling Mountable
- - -
Height 11" (279.40 mm)
43.90" (1115.06 mm)
- - 5.50" (139.70 mm)
6.42" (163.07 mm)
Width 4" (101.60 mm)
70.60" (1793.24 mm)
- - 2.60" (66.04 mm)
0.47" (11.94 mm)
Depth 2.99" (76 mm)
4.10" (104.14 mm)
4.21" (107 mm)
- - 0.31" (7.87 mm)
Weight (Approximate) 458.1 g
60 kg
3.50 kg
- 408.2 g
20 g
Certifications & Standards CE:
  • EN 301 511, v9.0.2
  • EN 301 908-1&2, v3.2.1
  • ETSI EN 301 489-1 V1.8.1
  • EN 60950-1:06

- - - - -
Environmentally Friendly Yes
- - - - -
Environmental Certification RoHS
- - - - -
Country of Origin Czech Republic
- China
- China
-
Limited Warranty Lifetime
- 7 Year
- - 1 Year
Product Series - F50
- - - -
Screen Size Class - 75"
- - - -
Viewable Screen Size - 75"
- - - -
Screen Mode - 4K
- - - -
Response Time - 8 ms
- - - -
Aspect Ratio - 16:9
- - - -
Backlight Technology - Direct LED
- - - -
Vertical Frequency - 60 Hz
- - - -
Maximum Resolution - 3840 x 2160
- - - -
Color Supported - 1.07 Billion Colors
- - - -
Dynamic Contrast Ratio - 4,000:1
- - - -
Brightness - 300 cd/m²
- - - -
Speakers - Yes
- - - -
Multi-touch Screen - Yes
- - - -
HDMI - Yes
- - - -
VGA - Yes
- - - -
DisplayPort - Yes
- - - -
Number of HDMI Inputs - 5
- - - -
Number of DisplayPorts - 1
- - - -
Built-in Devices - USB Hub
- - - -
Operating Power Consumption - 340 W
- - - -
Product Line - - Galil
Flash Survivor
Olympus
Crayon
Crossover Type - - 2-way
- - -
RMS Output Power - - 30 W
- - -
PMPO Output Power - - 80 W
- - -
Woofer Driver Size - - 4" (101.60 mm)
- - -
Woofer Driver Material - - Polypropylene
- - -
Tweeter Driver Size - - 0.50" (12.70 mm)
- - -
Tweeter Driver Material - - Mylar Dome
- - -
Minimum Frequency Response - - 85 Hz
- 40 Hz
-
Maximum Frequency Response - - 20 kHz
- 18 kHz
-
Impedance - - 8 Ohm
- - -
Sensitivity - - 97 dB
- - -
Product Color - - White
Black
- -
Woofer Diameter - - 4" (101.60 mm)
- - -
Diameter - - 7.68" (195 mm)
- - -
Cutout Diameter - - 6.57" (167 mm)
- - -
Package Contents - -
  • Galil 4-C 4-Inch, 2-Way Closed-Back Ceiling Speakers
  • Ceiling Mounting Kit
  • Template
  • User Manual

- -
  • Crayon Stylus
  • Quick Start Guide

Application/Usage - - Conference Room
Boardroom
Classroom
Hotel
Restaurant
- Podcasting
-
Storage Capacity - - - 1 TB
- -
Maximum Read Speed - - - 85 MB/s
- -
Maximum Write Speed - - - 20 MB/s
- -
Host Interface - - - USB 3.0 Type A
USB
-
Connectivity Technology - - - - Wired
-
Polar Pattern - - - - Cardioid
Directional
-
Microphone Type - - - - Stand Mountable
-
Length - - - - 5.50" (139.70 mm)
-
Platform Supported - - - - PC
-
Touchscreen Type Supported - - - - - Capacitive
Device Supported - - - - - Tablet
Replaceable Stylus Tip - - - - - Yes
Battery Chemistry - - - - - Lithium (Li)
Maximum Battery Run Time - - - - - 7 Hour
Product Material - - - - - Aluminum
Polycarbonate/Acrylonitrile Butadiene Styrene (PC/ABS)
Compatibility - - - - -

iPad Pro 12.9-inch

  • iPad Pro 12.9-inch (6th gen)
  • Model: A2436, A2764, A2437, A2766
  • iPad Pro 12.9-inch (5th Gen)
  • Model: A2378, A2461, A2379, A2462­
  • iPad Pro 12.9-inch (4th gen)
  • Model: A2229, A2069, A2232, A2233
  • iPad Pro 12.9-inch (3rd Gen)
  • Model: A1876, A2014, A1895, A1983

iPad Pro 11-inch

  • iPad Pro 11-inch (4th gen)
  • Model: A2759, A2435, A2761, A2762
  • iPad Pro 11-inch (3rd gen)
  • Model: A2377, A2459, A2301, A2460
  • iPad Pro 11-inch (2nd Gen)
  • Model: A2228, A2068, A2230, A2231
  • iPad Pro 11-inch (1st Gen)
  • Model: A1980, A2013, A1934, A1979

iPad®

  • iPad (10th gen)
  • Model: A2696, A2757, A2777
  • iPad (9th gen)
  • Model: A2602, A2603, A2604, A2605
  • iPad (8th gen)
  • Model: A2270, A2428, A2429, A2430
  • iPad (7th gen)
  • Model: A2197, A2200, A2198
  • iPad (6th gen)
  • Model: A1893, A1954

iPad Air

  • iPad Air (5th gen)
  • Model: A2588, A2589, A2591
  • iPad Air (4. Generation)
  • Model: A2316, A2324, A2325, A2072
  • iPad Air (3rd Gen)
  • Model: A2152, A2123, A2153, A2154

iPad mini®

  • iPad mini (6th gen)
  • Model: A2567, A2568, A2569
  • iPad mini (5th gen)
  • Model: A2133, A2124, A2126, A2125