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64GB MicroSD with JetPack for Jetson Nano B01 (4GB)
- แบรนด์ Cytron รหัสสินค้า: MMR-U-64-JPB01
Note: The MakerDisk microSD card comes Pre-loaded with JetPack 4.5.1 for Jetson Nano B01, ready to boot up on the respective board. Please DO NOT format it if you intend to use it with the respective boards.
Many Nvidia Jetson users have a common doubt: What type of microSD card is best for the boards? Well, we have been asking the same question since day 1:) We recommend Class A1 because of the characteristic of Nvidia accessing the memory on the microSD card. The random read and write speed is critical. For details of Class A1, please refer to here.
"But more and more, memory cards are being used to extend the memory of devices that run apps. Devices like smartphones and mobile gaming consoles. The apps that run on these devices interact with memory space differently. Rather than a stream of sequential data, they want to write a lot of small chunks of data wherever there's space available. That's known as random read/write (compared to sequential read/write that's important for video)." which Nvidia Jetson falls into, the operating system will need to read/write data from/to the microSD card in random access.
The MakerDisk microSD card has also gone through a special lifespan test by Raspberry Pi Foundation. Here is the methodology:
"Each card under test is loaded with a custom image containing up-to-date Buster (Raspberry Pi OS) image, automated stress test scripts and a local website to be accessed using Google Puppeteer automation. The host Raspberry Pi 4 Model B is powered by a custom PSU allowing the 5V1 input power to be cut as required. Up to fifty of these RPis can be run in a self-contained soak/stress rig.
On power up the RPi boots the image and autoruns a python-based test script. It first loads the standard Raspberry Pi Diagnostics test and logs the output to both the microSD card under test and optionally a plugged-in USB memory stick. During this operation, the PSU status indicator is held on constantly. Once this test has completed a random power-on time is set (between 60 and 300 seconds). This number is also logged to a second file so both the number of reboots and total run time can be determined later on. The MicroSD card is now exercised both by Google Puppeteer accessing multiple web pages from the Card and also a separate script creating, copying, and deleting multiple random length files. The PSU status indicator flashes twice a second during this time. Failed MicroSD cards can be quickly noted by the absence of this indicator light showing the RPi has failed to successfully boot from the card.
The MicroSD card activity above continues as the power is cut. Power is held off for a second, the Pi reboots and the process starts again."
Here are the results: The sample MakerDisk MicroSD cards gone through more than 1,700 times of random power interrupt and the speed tests show very good results. Superb!
This MakerDisk microSD card comes pre-loaded with JetPack for Jetson Nano, so it can boot up on the Jetson Nano computers right out of the box. Please DO NOT format it. If you want to load other Operating Systems, we would recommend getting the Raspberry Pi Imager or BalenaEtcher and choose the preferred Operating System into the microSD card.
Note: In case you need a USB microSD card reader/writer, get it from here.
JetPack 4.5.1 is the latest production release by Nvidia and supports all Jetson modules. JetPack 4.5.1 is identical to JetPack 4.5.
Key features in Jetpack:
Note: Refer to release notes for more details.
MakerDisk Features: