{"product_id":"adafruit-4899-spi-flash-sd-card-xtsd-512-mb","title":"Adafruit 4899 SPI Flash SD Card - XTSD 512 MB","description":"\u003cmeta name=\"description\" content=\"Buy Adafruit 4899 SPI Flash SD Card - XTSD 512 MB online in India at best price from The Engineer Store, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003eAdafruit 4899 SPI Flash SD Card - XTSD 512 MB\u003c\/h1\u003e\n\n\u003cp\u003eThe Adafruit 4899 SPI Flash SD Card is a 512 MB non-volatile storage module designed for embedded systems, IoT devices, and microcontroller projects requiring reliable data persistence. Electronics engineers, firmware developers, and hobbyists use this component to add expandable storage capabilities to Arduino, Raspberry Pi, and custom embedded platforms. This module solves the critical challenge of limited onboard storage in resource-constrained devices by providing high-capacity, fast-access flash memory over the industry-standard SPI interface.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Adafruit 4899 XTSD card operates on the Serial Peripheral Interface (SPI) protocol, enabling simple point-to-point communication with microcontroller boards using just four signal lines: Clock (CLK), Master Out Slave In (MOSI), Master In Slave Out (MISO), and Chip Select (CS). The 512 MB capacity provides substantial storage for logging sensor data, storing configuration files, buffering multimedia content, and maintaining application firmware. The module features robust error correction capabilities and supports standard SD card commands, making it compatible with existing SD card libraries and middleware across Arduino, CircuitPython, and embedded Linux environments.\u003c\/p\u003e\n\n\u003cp\u003eThis flash storage module delivers read speeds up to 25 MHz clock frequency and write performance optimized for sequential operations, making it ideal for data-intensive applications like environmental monitoring stations, GPS data loggers, and audio recording devices. The XTSD form factor ensures compact integration into space-constrained designs while maintaining full electrical compatibility with standard SPI flash protocols. Built with industrial-grade components, the Adafruit 4899 provides reliable long-term data retention with minimal power consumption, supporting both 3.3V and 5V logic levels through integrated level shifting.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSPI Flash Memory Card Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAdafruit Industries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e4899\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Capacity\u003c\/td\u003e\n\u003ctd\u003e512 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Protocol\u003c\/td\u003e\n\u003ctd\u003eSerial Peripheral Interface (SPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Clock Speed\u003c\/td\u003e\n\u003ctd\u003e25 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V to 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eXTSD Compact Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Retention\u003c\/td\u003e\n\u003ctd\u003e10+ years at room temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e512 MB Storage Capacity: Provides substantial non-volatile memory for logging applications, configuration storage, and firmware updates without requiring external cloud connectivity\u003c\/li\u003e\n\u003cli\u003eSPI Interface Compatibility: Operates on standard SPI protocol with CLK, MOSI, MISO, and CS lines, enabling seamless integration with Arduino, Raspberry Pi Pico, STM32, and ESP32 microcontrollers\u003c\/li\u003e\n\u003cli\u003eDual Voltage Support: Integrated level shifting allows safe operation at both 3.3V and 5V logic levels, eliminating the need for external voltage converters\u003c\/li\u003e\n\u003cli\u003eFast Read\/Write Performance: Supports up to 25 MHz clock frequency for efficient data transfer, reducing overall system latency in time-critical applications\u003c\/li\u003e\n\u003cli\u003eLow Power Consumption: Minimal standby current draw extends battery life in portable and remote IoT applications\u003c\/li\u003e\n\u003cli\u003eIndustrial Grade Reliability: Built with robust flash memory cells and error correction, ensuring data integrity across thousands of write cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnvironmental Data Logging: Store temperature, humidity, pressure, and air quality sensor readings from weather stations and indoor air quality monitors over extended periods without cloud dependency\u003c\/li\u003e\n\u003cli\u003eGPS and Location Tracking: Buffer GPS coordinates and timestamps for route mapping, vehicle tracking, and geographic analysis in autonomous systems and drone applications\u003c\/li\u003e\n\u003cli\u003eAudio and Multimedia Recording: Capture and store audio samples, voice notes, and sensor-triggered event recordings in portable devices and surveillance systems\u003c\/li\u003e\n\u003cli\u003eFirmware and Configuration Management: Maintain multiple firmware versions, calibration parameters, and user settings for over-the-air updates and system recovery in industrial IoT deployments\u003c\/li\u003e\n\u003cli\u003eReal-Time Data Acquisition: Log high-frequency sensor data from accelerometers, gyroscopes, and analog-to-digital converters for post-processing analysis in robotics and motion capture systems\u003c\/li\u003e\n\u003cli\u003eOffline Database Applications: Store structured data, lookup tables, and application state in embedded systems operating in remote or disconnected environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eTo integrate the Adafruit 4899 SPI Flash card into your project, connect the four SPI signal lines to your microcontroller: CLK to the clock pin, MOSI to the data output pin, MISO to the data input pin, and CS to any available GPIO pin configured as a digital output. Supply power from your microcontroller's 3.3V or 5V rail, and connect ground to establish a common reference. The module's integrated voltage regulation handles both logic levels automatically, eliminating compatibility concerns. Load the appropriate SD card library for your platform: use the SD.h library for Arduino boards, or the adafruit_sdcard library for CircuitPython environments on Raspberry Pi and other platforms.\u003c\/p\u003e\n\n\u003cp\u003eInitialize the card in your setup function by calling SD.begin() with the chip select pin number, then use standard file operations to create, read, and write files as if accessing a traditional SD card. For optimal performance, keep SPI clock speeds at or below 25 MHz during initialization, then increase to full speed once the card is mounted. Implement proper error handling to detect write failures and verify successful data commits before assuming persistence. When logging sensor data continuously, consider buffering multiple readings in RAM before writing to flash in batches, which reduces power consumption and extends flash memory lifespan by minimizing write cycle frequency.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the Adafruit 4899 compatible with Arduino Uno and Arduino Mega boards?\u003c\/summary\u003e\n\u003cp\u003eYes, the Adafruit 4899 is fully compatible with Arduino Uno, Mega, and other AVR-based boards. Connect the SPI pins as follows: CLK to pin 13, MOSI to pin 11, MISO to pin 12, and select any GPIO pin for CS. The module's integrated voltage regulation supports both 3.3V and 5V logic, so no level shifter is required. Use the standard SD.h library available in the Arduino IDE to access files and manage storage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this module with Raspberry Pi and ESP32?\u003c\/summary\u003e\n\u003cp\u003eAbsolutely. The Adafruit 4899 works with Raspberry Pi, Raspberry Pi Pico, ESP32, and other SPI-capable microcontrollers. For Raspberry Pi, use the adafruit_sdcard CircuitPython library or native Linux file systems. For ESP32, utilize the SD.h library with appropriate pin definitions. Ensure your microcontroller's SPI bus is properly configured and the CS pin is set as a GPIO output for reliable communication.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum number of write cycles this flash module supports?\u003c\/summary\u003e\n\u003cp\u003eThe Adafruit 4899 supports approximately 100,000 to 1,000,000 write cycles per block, depending on the specific flash memory cells used. For typical data logging applications writing a few kilobytes daily, the module will provide 10+ years of reliable operation. To maximize lifespan, implement wear-leveling techniques by rotating write locations across different memory sectors, and avoid repeated writes to the same address within short time intervals.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the module require special initialization or formatting?\u003c\/summary\u003e\n\u003cp\u003eThe Adafruit 4899 comes pre-formatted with FAT32 file system and is ready to use immediately. Simply connect the SPI pins, supply power, and call SD.begin() in your code. If you need to reformat the card, use your computer's SD card reader or implement SD card formatting functions within your microcontroller code using available libraries. Always back up important data before reformatting.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the data retention period if the module is not powered?\u003c\/summary\u003e\n\u003cp\u003eThe flash memory in the Adafruit 4899 retains data for 10+ years at room temperature without power. This makes it ideal for long-term archival storage and applications where devices may be inactive for extended periods. However, in high-temperature environments or after repeated write cycles, retention periods may decrease slightly. For critical data, implement periodic verification or redundancy checks.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Engineer Store\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy Adafruit 4899 SPI Flash SD Card - XTSD 512 MB Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eAdafruit 4899 SPI Flash SD Card - XTSD 512 MB\u003c\/strong\u003e online at \u003ca href=\"https:\/\/theengineerstore.in\"\u003eThe Engineer Store\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eAdafruit 4899 SPI Flash SD Card - XTSD 512 MB\u003c\/strong\u003e with fast shipping and expert support.\u003c\/p\u003e\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43856827187363,"sku":"TES-EV00082264","price":1085.44,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/4899-03-228x228.jpg?v=1704281267","url":"https:\/\/www.theengineerstore.in\/ta\/products\/adafruit-4899-spi-flash-sd-card-xtsd-512-mb","provider":"The Engineer Store","version":"1.0","type":"link"}