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SanDisk SDSDXDM-064G-GN4IN Extreme PRO 64GB SDXC UHS-II (U3) V90 - 300 MB/s Read/Write
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Product Features
Technical Overview
This SDXC card leverages advanced flash memory technology to achieve its 300 MB/s maximum read and write speeds, supported by the UHS-II bus interface that doubles the theoretical bandwidth compared to standard UHS-I cards. The Class 10/UHS-II (U3) rating guarantees minimum write speeds of 30 MB/s for sustained video recording, while the V90 certification specifically ensures performance for 4K and 8K video at high frame rates and bit depths.
The 64GB capacity utilizes the SDXC (Secure Digital Extended Capacity) format, which supports storage volumes from 32GB up to 2TB using the exFAT file system. This format is backward compatible with SDHC and SD hosts that support exFAT, though optimal performance requires UHS-II compatible card readers and devices.
Relevant factors for this section include Storage Capacity, Maximum Read Speed, Maximum Write Speed, Width. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The SanDisk Extreme PRO SDSDXDM-064G-GN4IN combines high capacity with exceptional speed, making it a versatile solution for content creators who work with large media files. Its balanced 300 MB/s read and write performance eliminates bottlenecks during both capture and transfer phases, significantly reducing wait times and improving workflow efficiency.
Professional-Grade Reliability
Designed for continuous use in demanding environments, this card offers robust data protection and durability to withstand temperature extremes, shock, and vibration.
- Extended lifespan for frequent read/write cycles
- Built-in error correction and wear leveling
Optimized for High-Resolution Media
The V90 speed class certification ensures smooth recording of 4K/8K video, 360-degree footage, and high-frame-rate content without dropped frames or buffer issues.
- Supports high-bitrate video codecs
- Ideal for burst-mode still photography
Deployment / Use Cases
This memory card is specifically tailored for professional and enthusiast imaging applications where speed and capacity directly impact creative output. Its performance profile makes it suitable for DSLR and mirrorless cameras shooting in continuous high-speed mode, cinema cameras recording 4K or higher resolution video, and as a high-speed transfer medium for editing workflows.
Common deployment scenarios include wedding and event photography where rapid shot sequences are essential, documentary and sports videography requiring sustained high-bitrate recording, and drone photography where lightweight, reliable storage is critical. The card also serves well in high-performance computing applications as removable storage for operating systems, virtual machines, or scratch disks when used with compatible UHS-II readers.
Professional Photography
Capture extended burst sequences of high-resolution RAW images without buffer delays, ensuring you get every shot in fast-paced environments.
- Ideal for sports, wildlife, and event photography
- Supports rapid review and culling on location
4K/8K Video Production
Record high-quality video with confidence, knowing the V90 rating guarantees the sustained write speeds needed for modern video formats.
- Suitable for cinema cameras and high-end camcorders
- Enables longer recording times without interruption
Physical Profile
The card maintains standard SD dimensions of 0.94" (24 mm) wide by 1.26" (32 mm) long, with a slim 82.68 mil (2.10 mm) thickness that fits seamlessly into any SD-compatible slot. At just 0.06 oz (1.67 g), it adds negligible weight to camera systems while offering a durable construction that resists bending and physical stress. The compact form factor ensures compatibility with a wide range of devices from professional cameras to laptops and card readers, with the distinctive Extreme PRO branding providing quick visual identification in your gear bag.
- Width
- 0.94" (24 mm)
- Weight
- 0.06 oz (1.67 g)
- Length
- 1.26" (32 mm)
Highlights
- 64GB SDXC capacity for extensive photo and video storage
- 300 MB/s maximum read and write speeds for rapid data transfer
- UHS-II (U3) interface with Class 10 performance rating
- V90 video speed class certified for 4K/8K recording
- Standard SD dimensions (24mm x 32mm x 2.1mm) for universal compatibility
- Lightweight design at just 0.06 oz (1.67 g)
- exFAT file system supporting large individual files
- Professional-grade durability for demanding shooting conditions
Specifications
| Specifications | |
|---|---|
| Manufacturer | Western Digital Corporation |
| Manufacturer Part Number | SDSDXDM-064G-GN4IN |
| Brand Name | SanDisk |
| Product Line | Extreme PRO |
| Product Model | SDSDXDM-064G-GN4IN |
| Product Name | Extreme PRO SD UHS-II Card (V90) - 64GB |
| Packaged Quantity | 1 |
| Product Type | SDXC |
| Technical Information | |
| Storage Capacity | 64 GB |
| Maximum Read Speed | 300 MB/s |
| Maximum Write Speed | 300 MB/s |
| Speed Class Rating | Class 10/UHS-II (U3) |
| Video Speed Class | V90 |
| Physical Characteristics | |
| Width | 0.94" (24 mm) |
| Thickness | 82.68 mil (2.10 mm) |
| Length | 1.26" (32 mm) |
| Weight (Approximate) | 0.06 oz (1.67 g) |
User Manual
FAQ
What is the actual usable capacity of this 64GB SD card?
The SanDisk Extreme PRO SDSDXDM-064G-GN4IN provides approximately 59.6GB of usable storage space, which is standard for flash storage devices due to the difference between decimal gigabytes (marketing) and binary gigabytes (actual formatting). The card uses the exFAT file system, which efficiently manages large files while maintaining compatibility with modern cameras and computers.
Do I need special equipment to achieve the 300 MB/s speeds?
Yes, to achieve the full 300 MB/s read and write speeds, you need both a camera or device with a UHS-II compatible SD card slot and a UHS-II card reader for computer transfers. While the card is backward compatible with UHS-I devices, you will experience limited speeds (typically up to 104 MB/s) when used in non-UHS-II equipment.
What does the V90 video speed class mean for my video recording?
The V90 video speed class guarantees minimum sustained write speeds of 90 MB/s, which is essential for recording high-bitrate 4K, 8K, 360-degree, and high-frame-rate video without dropped frames or recording interruptions. This certification ensures the card can handle the data demands of professional video formats, making it suitable for cinema cameras and advanced camcorders.
Is this card compatible with my older camera that only supports SDHC?
The SDSDXDM-064G-GN4IN is an SDXC card, which requires host devices that support the SDXC standard and exFAT file system. Many older cameras designed for SDHC may not recognize SDXC cards. Check your camera's specifications for SDXC compatibility before purchasing. If your device only supports SDHC, consider a 32GB or smaller card from the same product line.
How does the UHS-II (U3) interface improve performance over standard cards?
The UHS-II interface doubles the data bus pins from one row to two rows, increasing theoretical maximum bandwidth from 104 MB/s (UHS-I) to 312 MB/s. The U3 designation guarantees minimum write speeds of 30 MB/s. Together, these features enable the card's 300 MB/s performance, significantly reducing buffer clearing times during burst photography and improving transfer speeds to computers.
What type of content is best suited for this 64GB Extreme PRO card?
This card excels with high-resolution photography (RAW files, burst sequences), 4K/8K video recording, 360-degree video, high-frame-rate slow-motion capture, and as portable storage for large project files. The 64GB capacity balances substantial storage with reasonable file management, typically holding approximately 1,600 RAW photos, 65 minutes of 4K video at 100 Mbps, or thousands of JPEG images.
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