MicroSD cards have become essential accessories for devices like Nintendo Switch, GoPro, and Raspberry Pi, allowing users to add extra storage space. However, not all microSD cards are created equal, and it’s important to choose a reliable and high-performing option. To help consumers make an informed decision, we have conducted a series of benchmark tests on twelve microSD cards. In this article, we will discuss the factors to consider when purchasing a microSD card and provide recommendations based on our tests.
Capacity is the first thing to consider when buying a microSD card. Modern cards come in various sizes, ranging from 32GB to 512GB, with a few even offering 1TB models. While 2TB cards are still in the prototype stage, 128GB or 256GB cards are usually the sweet spot in terms of price and capacity. However, if you require more storage space, such as for a Steam Deck, a 512GB card may be more suitable. The cost of microSD cards varies depending on their capacity, with 128GB cards costing around $15 or less, 256GB cards priced under $30, and 512GB cards ranging from $40 to $60. 1TB cards are priced at around $100. It’s important to note that a microSD card’s performance may differ based on its capacity, with higher-capacity models generally offering faster speeds.
Read and write speeds are crucial factors to consider when choosing a microSD card. Read and write speeds are measured in megabytes per second (MB/s) and are typically faster for reading than writing. Sequential read and write speeds are important for tasks like accessing or saving large files, while random performance pertains to the card’s ability to quickly read and write small files in random locations. While manufacturers tend to emphasize sequential speeds, random speeds are particularly significant for gaming devices like the Raspberry Pi or for gaming consoles. MicroSD cards are assigned speed ratings by the SD Association, such as the Video Speed Class (V-rating), the UHS Speed Class (U-rating), and the Application Performance spec (A-rating). The V-rating indicates the minimum sequential write speed, while the U-rating specifies the minimum sequential write speed. The A-rating denotes the random read and write speeds. Cards with V30, U3, and A2 ratings generally provide the best balance of price and performance.
Another aspect to consider is the card’s bus interface, categorized as UHS-I or UHS-II. UHS-I cards have a maximum theoretical speed of 104 MB/s, while UHS-II cards, distinguished by an extra row of pins at the back, can reach speeds of up to 312 MB/s. However, UHS-II cards are more expensive and require a device that is compatible with the UHS-II interface to fully benefit from their performance. For most users, UHS-I cards are more than sufficient and offer a better cost-to-performance ratio.
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In terms of warranty, it’s advisable to choose a microSD card with a long warranty period. Many cards are designed for durability, with features such as water resistance, resistance to extreme temperatures, X-ray protection, and shock resistance. While many manufacturers offer limited lifetime warranties, it’s worth noting that “endurance” cards designed for heavy writing usage may have shorter warranty periods.
To avoid purchasing counterfeit microSD cards, it’s essential to buy from reputable brands and trusted retailers like Best Buy, B&H Photo, or Adorama. When shopping on Amazon, make sure to purchase from Amazon.com directly to minimize the risk of counterfeit products.
Based on our tests, some of the top-performing microSD cards include the SanDisk Extreme series, which offers fast read and write speeds and comes in various capacities. Other reliable options include the Samsung EVO series and the Lexar Professional series. It’s important to check the specific models and their corresponding ratings to choose the one that best suits your needs and budget.
In conclusion, when purchasing a microSD card, consider the capacity, read and write speeds, speed ratings, bus interface, warranty, and reliability of the brand. By taking these factors into account and selecting a reputable product, you can ensure optimal performance and storage capacity for your Nintendo Switch, GoPro, or Raspberry Pi.
