The summary of ‘Confusing Symbols on SD Cards’

This summary of the video was created by an AI. It might contain some inaccuracies.

00:00:0000:05:21

The video provides comprehensive guidance on selecting the appropriate SD card, focusing on physical size, capacity, and speed classifications essential for various devices and recording needs. Standard SD cards are ideal for cameras, while MicroSD cards suit smaller devices like the Nintendo Switch and smartphones. Capacity ranges from 2GB to potentially 128TB, though commonly available cards max out at 1TB, with compatibility considerations for older devices necessitating FAT32 formatting.

Speed markings can be complex, with 'C' indicating basic write speeds and 'U' denoting ultra-high-speed cards with UHS1, UHS2, and UHS3 levels—a higher number indicating faster speeds. UHS3 cards, in particular, offer speeds akin to SATA SSDs, and cards marked 'ex' or 'Express' can achieve near one terabyte per second speeds thanks to their PCI Express Bus support. For video recording, the 'V' class system recommends V30 for HD, V60 for 4K, and V90 for 8K footage. The video emphasizes understanding these factors to make the right purchasing decision and concludes with viewer engagement prompts.

00:00:00

In this segment of the video, the speaker details the key factors to consider when buying an SD card. The main points cover the physical size, data capacity, and speed of SD cards. The physical size options include standard SD, mini SD, and MicroSD, with mini SD now largely obsolete. Standard SD is common in cameras, while MicroSD is used in smaller devices like the Nintendo Switch and some smartphones. For write protection, a standard-sized SD card is required, though MicroSD cards can achieve this with an adapter.

Regarding storage capacity, the theoretical limit is up to 128 terabytes, but currently, cards typically max out at one terabyte. The SD symbols indicate capacity types: SD for up to 2GB, SDHC for up to 32GB, XC for up to 2TB, and UC for 128TB (if available). Compatibility with older devices might require formatting new cards with FAT32.

The segment also includes a brief sponsored message about a magnetic charger by ‘Tech goods,’ emphasizing its practicality and compatibility features.

00:03:00

In this segment of the video, the speaker explains the complexities of choosing the right SD card for recording HD, 4K, or 8K video due to the cryptic speed markings on the cards. They clarify that a number inside the letter ‘C’ indicates write speed in megabytes per second for slower cards, while ‘U’ indicates ultra-high-speed (UHS) cards with different write speeds. Additionally, UHS cards feature a Roman numeral indicating the bus interface speed for reads. Current market cards are typically UHS1 or UHS2, with UHS3 offering speeds comparable to a SATA SSD. Cards marked with ‘ex’ or ‘Express’ support the PCI Express Bus, promising near one terabyte per second speeds. The letter ‘V’ followed by a number denotes the video speed class, recommending v30 for HD, V60 for 4K, and v90 for 8K. The segment concludes with a call to action for viewers to like, dislike, comment, and subscribe to the channel.

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