Brand licensed high-speed memory card wholesale sufficient quantities of memory card manufacturers, wholesale memory card, TF card Introduction: 
 Memory card, TF card, full name: TransFLash, also known as: Micro SD, jointly developed by Motorola and SANDISK, launched in 2004. 
 Is an ultra-compact card, you can count the smallest memory card memory card, TF card is a tiny flash memory card, 
 Its size to 15mm x 11mm x1mm, almost equal to the size of the finger, 
 Is present, the smallest memory card. It is also through the SD adapter is connected to the SD card slot. Flash memory card (Flash Card) is the use of flash memory (Flash Memory) technology has reached the memory of the storage of electronic information, the general application of small digital cameras, handheld computers, MP3 and other digital products as the storage medium, so look small, like a card, so known as flash memory cards. According to different manufacturers and different applications, flash cards about SmartMedia (SM Card), Compact Flash (CF card), MultiMediaCard (MMC Card), Secure Digital (SD card), the Memory Stick (Memory Stick), XD-Picture Card (XD Card) and micro hard drive. SD card SD card (Secure Digital Memory Card) is a new generation of memory devices based on semiconductor flash memory. SD card in August 1999 by Japan's Panasonic, Toshiba, and the U.S. SanDisk Corporation jointly developed. Size as a stamp of SD memory card, weight only 2 grams, but it has a high memory capacity, fast data transfer rates, great flexibility and good mobile security. SD card in the size of 32mm × 24mm × 2.1mm combined with SanDisk flash memory card control and MLC (Multilevel the Cell) technology and Toshiba (Toshiba) 0.16u and 0.13u NAND technology, through the 9-pin connector interface with specialized The drive is connected, no additional power to keep the information on the memory. And it is the integration of solid medium, has no moving parts, so do not worry about damage to the mechanical movement. Developed from the data transfer and physical specifications of the SD card by the MMC. The length and width, and MMC, but thick 0.7mm, in order to accommodate the larger capacity storage unit. SD card and MMC card to maintain upward compatibility, that is, MMC can be new SD equipment access, compatibility depends on the application software, but the SD card can not be access to the MMC devices. (SD card appearance with the same thickness and MMC rail design, so that SD equipment can fit MMC) SD interface in addition to the 7-pin to retain the MMC, but also on both sides adds a 2 pin as a data line. NAND-type Flash Memory, basically and SmartMedia the same, the average data transfer rate can reach 2MB / s. Memory card companies have to develop the SD card, Panasonic is the most important manufacturers in the SD card, SD card capacity from 8MB to 64MB divided into four different levels to meet the needs of different occasions, the data transmission rate in 2000 2MB / s. The end of 2001 the capacity of a single card has up to 512MB, data transmission rate increase to 10MB / s. 2003 capacity of 1GB, the data transfer rate of 20MB / s high-performance memory card capacity up to 4GB in 2005. The traditional SD1.1 standard specification only the highest capacity of the SD card to 2GB SD Union officially launched in January 2006 SD2.0 standard, a new generation of SDHC card capacity from 4GB, over the next decade will be able to achieve the maximum capacity of 32GB of . A new generation of SDHC memory card SD card file system from FAT16 to upgrade FAT32, the breakthrough in the original SD card maximum capacity of only 2GB of restrictions, and audio and video applications in the design specification. SDHC memory card form factor volume with existing SD card the same copyright protection system, however, because the file system changes, making only supports the the FAT12/16 the file system device can not use it in the past, and the support of equipment in addition to the FAT32 file system can use SDHC, you can still use the original SD card. The identity of the speed, SDHC uses the concept of "level (Class), is divided into" Class2 "(2MB/sec)," Class4 "(4MB/sec)," Class6 "(6MB/sec) three kinds, The high-speed SD card can support real-time storage of high-resolution video recording. 
 The MicroSD card 128MB, 256MB, 512MB, 1G, 2G, 4G, 8G, 16G and 32G of capacity. TF card Parameters: Weight: 0.6g Power Power: 2.7 ~ 3.6V Dimensions: 11mm x 15mm x1mm transmission speed: 10m / s, write: 5MB / s, 5120 kb / s transmission frequency: The maximum 25MHz Storage temperature: -20 to 85 degrees Operating temperature: 0 degrees to 60 degrees standard: Complies with SD Association specification standards scope of application: widely used in mobile phone TF card slot and a variety of digital products after-sales service: where to buy products from the factory, If there is non- quality problems of the human factors are unconditional warranty year, the company specializes in producing U disk, Gifts U disk, memory cards, card readers, video cameras, computer peripheral products, welcome to inquire!