ROCK 4 has a modern and powerful hexa-core ARM based processor, RK3399 inside, it offers significantly improved performance versus other popular SBC boards. All models are equipped with LPDDR4 3200Mb/s RAM and optional high performance eMMC modules, boost all applications.
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ROCK 4 features maker friendly expansion options, including a 40-pin GPIO interface that allow for interfacing with a range inputs from buttons, switches, sensors, LEDs, and much more.
ROCK 4 also features a Gbit LAN for network, with dedicated bus and controller, it works without latency under heavy load network applications. On board 802.11 ac wifi offers 2.4G & 5G WLAN connectivity. With Bluetooh 5.0, ROCK 4 benefits improved Bluetooth speed and greater range.
ROCK 4 also features one USB 3.0 host and one USB 3.0 OTG ports, each 5Gbps/s, working independently. The USB 3.0 OTG can work as USB device such as Android ADB or USB gadgets. A hardware switch is provided for OTG mode switch.
Read MoreROCK 4 supports mainstream AI stack with GPU acceleration. Further more, a dedicated hardware NPU accelerator coming up next for ROCK 4 will boosts complex Machine Learning algorithm and reduce the power.
Industrial standard MIPI CSI connector makes it easy to connect exsit cameras to ROCK 4 and ROCK 4 also supports industrial standard MIPI DSI for LCD and touch screen. With hardware accelerated algorithm, it's great for Computer Vision application, Robotics and much more.
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A virtual on-screen keyboard highlights keys, while animated hands demonstrate the correct finger movement for each key.
The software offers a wide range of typing lessons and exercises tailored to different skill levels, from beginner to advanced. These lessons are designed to gradually build the user's typing speed and accuracy.
: Extremely lightweight, with a file size of approximately 1.0 MB to 1.5 MB. Educational Use
: Lessons start with basic "Home Row" placement and advance to complex timed speed tests. Unique Speed Drills
If you prefer a downloadable program for offline use, these are excellent, safe options for Windows, macOS, and Linux.
A genuine license ensures your computer remains secure from malware.
. While it is older software—with version 5.4 dating back to approximately 2009—it remains a lightweight and functional tool for beginners and experienced typists alike. Key Features Visual Learning System
If you want to find the perfect platform for your goals, let me know:
If you want to test your skills against others, TypeRacer turns typing practice into a multiplayer racing game using quotes from books, movies, and songs. Choosing the Right Path
If you're looking for a serial number for Letter Chase Typing Tutor 5.4, I have to advise that I don't condone or promote piracy or unauthorized software activation. However, I can suggest some alternatives for you:
A virtual on-screen keyboard highlights keys, while animated hands demonstrate the correct finger movement for each key.
The software offers a wide range of typing lessons and exercises tailored to different skill levels, from beginner to advanced. These lessons are designed to gradually build the user's typing speed and accuracy.
: Extremely lightweight, with a file size of approximately 1.0 MB to 1.5 MB. Educational Use
: Lessons start with basic "Home Row" placement and advance to complex timed speed tests. Unique Speed Drills
If you prefer a downloadable program for offline use, these are excellent, safe options for Windows, macOS, and Linux.
A genuine license ensures your computer remains secure from malware.
. While it is older software—with version 5.4 dating back to approximately 2009—it remains a lightweight and functional tool for beginners and experienced typists alike. Key Features Visual Learning System
If you want to find the perfect platform for your goals, let me know:
If you want to test your skills against others, TypeRacer turns typing practice into a multiplayer racing game using quotes from books, movies, and songs. Choosing the Right Path
If you're looking for a serial number for Letter Chase Typing Tutor 5.4, I have to advise that I don't condone or promote piracy or unauthorized software activation. However, I can suggest some alternatives for you:
Send us a email with your questions
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