MRT has listed sorts of prices based on different quantity, you can contact us by sales@mrt3c.com if you have demands of 10,000pcs or more. We will do special offer for it.
As our products are Customized Micro SD cards,SD Cards, SDHC Cards, SDXC Cards and USB flash drives, the shipping volume and weight is small. We normally use DHL, FedEx and UPS to ship by air.
We only accept payment in advance for all the order. As we have regular stock for bulk memory cards, therefore, the lead time will be one or two days only.
Selecting the right SD card helps to save cost and improve your devices’ performance. Especially when using a camera or camcorder to take videos or continuous shooting, a good SD card really matters. As SD card has been an essential storage for your digital devices by storing data, it is a necessary to know the standard of SD card classes.
How is the type of SD card classes?
Class is a guidance of speed for memory cards launched by SD Association. To distinguish SD cards among different writing or reading speed, there are various types linking to the speed ratings.
Speed Class
UHS Speed Class
Video Speed Class
“Speed Class“ Mark C10
“UHS Speed Class” Mark u3
“Video Speed Class” Mark v90
Speed Class – this is an older generation of speed family, the market used it in last decades. Normally number with a circular “C” symbol is telling minimum write speed.
Class 2 (C2): The minimum write speed is 2MB/s. This is the slowest version for this type, most SD cards in low capacity offers this speed.
Class 4 (C4): 4MB/s by write
Class 6 (C6): minimum write speed of 6MB/S
Class 10 (C10): minimum write speed of 10MB/S. C10 is the main demands for present devices, users prefer fast reaction.
UHS Speed class – It is an updated version of speed; the full name is Ultra-high speed. There is “U” symbol together with number to tell different types. Two main ratings within the UHS speed class are as follows.
UHS-1 (U1): The minimum write speed reaches 10MB/s. Comparing with class 10, many dash cams and DSLR cameras prefers U1 type. As the UHS bus interface provides a sustained write performance, it is perfect for 1080P or 4K video recording.
UHS-3 (U3): minimum write speed at 30MB/s. High-end cameras or drones always take a U3 rated SD card. Regardless of a high write speed, its read can hit up to 104MB/s
Video Speed class – This is the latest feature to support higher video resolution. They are displaying in “V” symbol.
V30: minimum write speed at 30MB/s
V60: lowest writing speed of 60MB/s
V90: minimum write speed at 90MB/s
The importance of SD card classes
When purchasing SD cards, users firstly will check the speed, and then it is the capacity. With a faster writing or reading, a camera can shoot a larger number of photos per minute. Even you purchase a 128GB or 512GB SD card, the recoding time is slow if you ignore the speed. In addition, the parameter of devices must be checked prior to order SD card. As you need to confirm the speed range of your equipment, it will make sure a good performance.
High SD speed classes enhance your devices’ performance
Action photography normally shoots photo in RAW format, each image displays in 41 MP and occupies over 25MB. To avoid any delays on photo loading, U1 and U3 class are the best option.
Speed version tells the cost
Normally we can know the cost range of SD card by capacity and speed. However, high capacity not always deliver high cost if the speed is slow. For example, one 128GB SD card class 10 is much cheaper than U1 or U3 version. Therefore, the lowest price is hard to guarantee high speed.
Speed backward compatibility
Bulk memory cards are able to be backward compatible within its generation. For instance, you can use one SDHC card in SD version slot. The only difference is that the device will work at the slowest speed of memory card. Thus, if you use one U3 SD card in U1 slot, the fastest speed will be same as U1 standard.
SD speed classes for host device
In order to bring users convenience, devices suppliers will mark class symbol on their hosts. It indicates a minimum speed request; the equipment cannot work properly if you use lower speed.
Host device requests for Class 4 SD card: You can use SD speed at Class 4, 6 and class 10
Host device asks for UHS-1 SDHC Card: It means it supports UHS-1 or UHS-3 memory cards.
Device with Video speed class has the same rule request as above. Therefore, it is wiser to check these details prior to order any bulk SD cards.
Benefits from fast SD Cards
As if the devices can support high speed type, SD cards in fast speed offer a good performance. Let’s research into these benefits from different devices.
Game console such as Nintendo Switch: A good game experience is guaranteed if you use a faster card, which is helpful for games loading.
Cameras: Photographers prefer continuous shooting modes. As speedy cards can catch up with an efficient storing, it means numbers of photos can be shoot at once. Especially, when you use camera to take photo in 4K or 8K, a U3 SD or CFexpress card can record extreme high-resolution images.
3D printer and Raspberry Pi: You can save lots of time if you get fast SD card using there.
Notes on purchasing SD memory cards
Obviously, the cost is more if you choose a large capacity and high speed card. However, the purchase instruction should follow up the requests of devices. For example, your GPS device tells class 4 workable for data recording, then class 4 SD card is good and cheap enough for supporting its performance. Likewise, if you are engaging in photography business, a large amount of data transfer is a must for daily job. In this way, you ‘d better consider SD cards in higher speed and larger capacity.
Conclusion
SD speed rating is a key parameter for measuring speed of writing and reading, normally it is expressed as megabytes per second. Class speed on cards is telling minimum speed of recording, as if users know well of these specificat
Memory Range Technology Co., Limited (it will be used as “MRT” instead in follow pages) established in August 2008. MRT is producing flash storage products, including Bulk Micro SD Cards, Bulk SD Cards, Custom USB Drives and SSD Drives. MRT Manufacturer develops its leading-edge flash storage products completely in-house, including Solution Designing, Wafer packaging, IC Testing, SMT and Assembling, Product Testing. Manufacturing is conducted according to strict quality standards to ensure consistently high-quality products.
Who We Are
MRT has been one professional manufacturer of memory card products, suppling bulk memory cards in full ranges, USB flash drives with modern and stylish design, and accessory of varies types. We are not only an expert on producing qualified Flash products, but also able to provide a wide solution for customization service.
With powerful support of sales, tech, and design team, our products can achieve creative design, high quality and competitive prices, no matter it is for bulk order or brand one, we can do perfectly work with them.
We can fulfill any orders related to storage; you will always find answers here for your requests.
Our goal
MRT aims to provide reliable, long-warranty, innovative memory card products to our clients. We continue providing the most competitive price for our customers, it is the great success for us when we beat down any cost.
Our target is what you order from MRT is not just the products but the lifetime service and forever friendship.
Our History
2008. MRT had established since 2008, we were working on wholesale business for Custom USB flash drives only.
2011. Along with the high development of storage market, we started to cooperate with Taiwan factory to establish memory cards production lines in 2011.
2013. MRT had recruited own tech team to make designs on PCBA and UDP for usb flash drives, and started customized drives. Also, we established our HK branch to handle logistics worldwide.
2015. MRT cooperated with two local factory to run on own card readers and related accessory to make sure quality management.
2016. MRT launched own production line for memory cards in Shenzhen china, first micro sd 128gb is independently produced, and our Shanghai branch had established.
2018. The sales quantity of memory products made by MRT had reached 30 million pieces per year.
2020 Our cooperated clients from personal users to Fortune 500 companies had reached over 100k.
MRT has 7 production lines mainly producing memory cards.
The solution of bulk memory cards(Custom SD Card&Micro SD Card&CF Card) we regularly supplied is SLC, MLC and TLC; these sources are compatible with different electronic gadgets and devices. Therefore, you can find any types of memory cards with MRT. The SLC Micro SD and SD Card is suitable for industrial market, MLC Micro SD Card is perfect for GPS, Dash Cam, raspberry Pi and Drone, TLC Memory Cards are workable with phones, smart tablets and the other portable devices. MRT production capacity can reach 10K per day, and 300K per month. The whole production process is under strict QM procedure, it is going through IQC, Module wrapping and Test, SMT and Test, OQC inspection and Reliability Test. Quality of MRT Flash is the first priority of any orders, the warranty of MRT bulk memory cards is lifetime.
Custom USB Drives Source
MRT has own chip line for wholesale usb flash drives, all the flash MRT used for USB drive is Grade A and high speed solution. The chip of USB sticks MRT mostly adopts is UDP and PCBA, the controller and flash are all original and full capacity. The attractive part of USB Flash Drive is the housing, MRT supplies varies shells such as leather USB, Plastic USB, Metal USB, OTG USB, Crystal USB, Credit Card USB, Gift USB and Cartoon USB. MRT insists on full testing of Bulk USB Flash Drive before delivery, also provides the service of data loading, logo printing and customizing package. Furthermore, MRT has online sales team to work with customers, any customized requests for Custom USB Drives MRT can complete within 2 days.
The good news is that your camera user manual will tell you the memory card format and the minimum speed level you need to buy. You need to figure out the capacity and choose your price range. Finally, you must be sure to use one card reader compatible with your card. Otherwise, you may find that the transmission speed is much slower than you want.
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