Owners of the popular budget smartphone Xiaomi Redmi 7A often face a lack of built-in storage, the volume of which in the basic versions is only 16 or 32 GB. After installing the necessary applications and free space system remains critically small, which makes users think about expanding memory. It is at this point that a natural question arises about the cost of an additional drive that can solve the problem of crowded storage.
The flash storage market today offers a wide range of solutions, from budget options to high-speed professional-grade cards. The price of a memory card for your device depends on many factors, including the manufacturer's brand, the declared read and write speed, and the amount of data, and understanding these parameters will help you not overpay for unnecessary functions or, conversely, avoid buying a too slow drive.
In this article, we will discuss in detail the pricing policy for different types of microSD cards relevant to the Redmi 7A model. You will learn how much you really need to spend to get a stable operation of the device, and what nuances should be considered when ordering in online stores or buying in retail electronics outlets.
Factors Affecting the Cost of Drivers
The pricing of memory cards is driven by several key parameters that directly affect the performance and reliability of data storage, primarily the speed class, which indicates the minimum guaranteed write speed. For smartphones like the Xiaomi Redmi 7A, this parameter is critical if you plan to record video or run applications from an external drive.
The second important factor is the manufacturer’s brand and warranty: well-known companies such as SanDisk, Samsung or Kingston charge higher prices due to proven reliability and long-term warranty. Cheap Chinese counterparts can cost many times less, but the risk of data loss when using them increases significantly, making such savings doubtful.
The price is also affected by the amount of memory and interface type, and UHS-I (Ultra High Speed) cards will cost more than regular C10 cards, even though they are physically compatible with your phone's slot, with a price difference of 30 to 50 percent depending on the volume.
⚠️ Note: Purchase of memory cards in volume 512 GB 1 TB at a suspiciously low price (less than) 500 ruble 99% In other words, it means the acquisition of a fake with a real amount of 8-16 GB.
In large electronics stores, margins can be higher due to renting space and staff, whereas on marketplaces prices are often lower, but you need to carefully monitor the seller's rating. Sometimes the difference in price between neighboring stores can reach 20-30%.
Overview of prices for cards with a volume of 32 GB
The 32GB capacity is the minimum reasonable threshold for expanding the memory of a smartphone in the current realities, enough space to store several thousand photos, music and dozens of applications, the cost of such cards starts from 350 rubles for the basic models of nameless manufacturers.
If you look at the products of authorized distributors, the price of a 32 GB class 10 microSDHC card will vary from 450 to 650 rubles. For this money, you get a guarantee of compliance with the declared characteristics and protection against counterfeiting. The price difference between different stores here can be significant.
For Redmi 7A users who use the phone as a second device or for calls, this volume is often enough, but it is worth considering that the system and applications take up part of the internal memory, so the external card takes over the main load on the media files.
- 💰 Budget options (no-name): cost from 300 to 400 rubles, but the risk of marriage is high.
- 🏆 Middle segment (Kingston, Silicon Power): price is about 500-600 RUB, good balance of price and quality.
- 🚀 Premium segment (SanDisk Ultra, Samsung Evo): cost from 600 to 800 rubles, high reliability.
When choosing a 32GB card, it is important to pay attention to the Class 10 marking. Older standards (Class 4 or Class 6) may be available for sale at a reduced price, but their performance in a modern smartphone will be unsatisfactory, causing interface brakes.
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When buying a 32GB memory card or less, make sure it has a microSDHC marking, not just an SD, although they will fit in the phone slot the same way, the HC standard guarantees support for large file systems.
Cost of memory cards for 64 GB and 128 GB
The middle ground for owners of Xiaomi Redmi 7A today are cards with a volume of 64 and 128 GB. They belong to the microSDXC standard and allow you to store huge file libraries. The price of 64 GB starts from 600 rubles for promotional models and reaches 1000-1200 rubles for the top series.
The 128GB cards offer even better value per gigabyte of storage, typically priced in the range of 1,100 to 1,800 rubles at retail, and are the best choice for those who make a lot of video or store offline navigation maps and high-quality music.
It is worth noting that the file system of cards of this size is often formatted in exFAT. the Redmi 7A phone running MIUI works with this format without problems, providing support for files larger than 4 GB, which is important for modern video formats.
| Memory capacity | Budget segment (ruble) | Middle segment (ruble) | Premium segment (ruble) |
|---|---|---|---|
| 32Gb | 350 - 450 | 500 - 600 | 650 - 800 |
| 64 GB | 600 - 750 | 800 - 1000 | 1100 - 1300 |
| 128GB | 900 - 1100 | 1200 - 1400 | 1500 - 1900 |
| 256 GB | 1400 - 1600 | 1700 - 2000 | 2200 - 2800 |
Buying cards with a capacity of 128 GB and above makes sense if you are actively using a smartphone for multimedia. Otherwise, for ordinary tasks, the difference in speed between 64 and 128 GB on a budget processor Redmi 7A may not be noticeable, and the overpayment will be a significant amount.
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The optimal choice in terms of price and volume for the Redmi 7A is a 64 GB card, since the price for 1 GB is the lowest, and the performance of the phone will not allow you to fully unlock the potential of more expensive analogues.
Maximum volumes: 256 GB and 512 GB
Officially Xiaomi Redmi 7A supports memory cards up to 256 GB, but in practice the device often works correctly with drives of 512 GB. The cost of such cards is much higher: 256 GB can be found from 1500 rubles, and 512 GB - from 3000 rubles and above.
Buying such a capacious card for this model of the phone makes economic sense only in specific cases, for example, if the phone is used as a DVR or media player in the car. For everyday use, the price of 3-5 thousand rubles per flash drive can exceed the cost of the used smartphone.
When installing large-volume cards, it is important to consider the speed of the memory controller. Cheap 256+ GB cards can have a low random read speed, which will lead to a long start of applications and “hang” of the gallery when viewing photos.
If you do decide to buy a card with a capacity of more than 256 GB, be sure to check the label A1 or A2 (Application Performance Class), which ensures that the card is optimized for working with applications, not just for linear video recording.
⚠️ Note: Before buying a 512GB card, check the specification of your specific firmware version. MIUI support for such volumes, as older versions of the software may not properly mount the disk.
Where is it better to buy: online or offline
The choice of place of purchase directly affects the final amount of the check. Large federal electronics networks (M.Video, Eldorado, Citilink) often offer prices above the average market, but provide the possibility of a quick replacement of goods under warranty in the event of marriage, where the price of a SanDisk 64 GB card can be 1200 rubles.
Marketplaces (Ozon, Wildberries, Yandex.Market) offer more competitive prices, often 20-30% below retail prices. However, it is important to distinguish between sellers: buying from the marketplace itself or a brand official is safer than from a low-rated private seller.
Chinese sites (AliExpress) offer the lowest prices, but delivery takes time, and the return procedure in the event of marriage can be complicated, and there is a high risk of being counterfeited, if you do not choose trusted sellers with a large number of orders.
- 🏪 Retail chains: high price, instant receipt, simple guarantee.
- 📦 Marketplaces: Average price, fast delivery, you need to look at the seller.
- 🌏 Chinese sites: low price, long delivery, risk of counterfeiting and difficulties with return.
☑️ Checking the seller before buying
How to distinguish the original from the fake
The memory card market is saturated with counterfeit products that are seemingly indistinguishable from the original. Fake cards are often refashioned so that the computer sees the declared volume (for example, 128 GB), but actually records only 8 GB, after which it begins to cyclically rewrite old data, irrevocably destroying the information.
The original SanDisk and Samsung cards have clear, indelible engraving, flat edges and high-quality hologram packaging. The original case always has a serial number that can be checked on the manufacturer's website. Counterfeits often have blurred font or spelling errors in the brand.
The most reliable way to check is to use specialized utilities on a PC, such as H2testw or F3. These programs record the test file on the entire surface of the card and read it, revealing the real volume and speed. If the card "Redmi 7A Compatible 128GB" costs 500 rubles, it is a guaranteed fake.
H2testw Programme
When shopping online, pay attention to the country of origin. Original cards are often made in China, Malaysia or Taiwan, but the packaging must be of high quality. The lack of Russian localization on the package is not always a sign of counterfeiting, since many products are parallel imports, but the presence of errors in the English text is a worrying sign.
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Keep the check and the package from the memory card for a minimum warranty period (usually 1-5 years).If you have problems reading the data, having a check will simplify the procedure for replacing the warranty.