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SanDisk 256GB Extreme PRO® microSDXC™ UHS-I Card

SanDisk 256GB Extreme PRO® microSDXC™ UHS-I Card

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SKU:S-SD-256GB-EP

  • Delivers sequential read speeds up to 200MB/s for fast data offload
  • Writes at up to 140MB/s for sustained high-volume data recording
  • U3 and V30 ratings support uninterrupted 4K UHD video capture
  • QuickFlow technology speeds up post-mission media transfer and offload
  • Shockproof, waterproof, and temperature-proof construction withstands field conditions
  • X-ray-proof design protects mission data during travel and transport
  • Operates reliably across a wide -25°C to 85°C temperature range
  • 256GB capacity reduces card swaps during extended mapping sessions
  • Backed by SanDisk's Lifetime Limited Warranty on every card
  • Compatible with microSDXC UHS-I supporting drones and field devices
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  • Description
  • Specifications
  • In the Box
  • FAQ

SanDisk Extreme PRO microSDXC UHS-I Card 256GB: High-Capacity, High-Speed Storage for Drone Data Capture

The SanDisk Extreme PRO microSDXC UHS-I Card delivers the speed and capacity professional drone operators need for extended data capture sessions in the field. With sequential read speeds up to 200MB/s and write speeds up to 140MB/s, this 256GB card handles sustained data throughput from high-resolution photo capture, 4K UHD video, and continuous mapping or inspection payloads without bottlenecking the mission. The added capacity over smaller cards means fewer card swaps during long flight sessions and more room for high-volume datasets.

Rated UHS Speed Class 3 (U3) and Video Speed Class 30 (V30), the card supports uninterrupted 4K UHD recording without dropped frames, a requirement for thermal inspection footage, infrastructure documentation, and mission-critical recordings where complete data capture matters as much as flight performance.

Shockproof, waterproof, temperature-proof, and X-ray-proof construction, combined with an operating range of -25°C to 85°C, means the card holds up to the handling and environmental exposure typical of active field deployment. Every card is backed by a Lifetime Limited Warranty from SanDisk.

Key Features at a Glance

  • Read performance: sequential read speeds up to 200MB/s for fast data offload.
  • Write performance: sequential write speeds up to 140MB/s for sustained in-flight recording.
  • Video rating: U3 and V30 classifications support uninterrupted 4K UHD capture.
  • QuickFlow technology: optimizes transfer speed for faster post-mission data offload.
  • Rugged construction: shockproof, waterproof, temperature-proof, and X-ray-proof for field durability.
  • Wide temperature range: operates reliably from -25°C to 85°C in the field.
  • High capacity: 256GB supports extended mapping, inspection, and LiDAR data sessions.
  • Lifetime Limited Warranty: backed by SanDisk's manufacturer warranty on every card.

For enterprise drone operators running longer missions or capturing higher-resolution payload data, capacity is as operationally relevant as speed. The 256GB Extreme PRO card extends flight time between data offloads and reduces the risk of running out of storage mid-mission, while its write speed headroom keeps pace with demanding video and high-resolution photo capture without dropped frames or recording interruptions.

DSLRPros carries the SanDisk Extreme PRO microSDXC UHS-I Card as part of its complete accessories portfolio supporting professional drone operations. Reliable, high-capacity storage is foundational to any serious data capture mission.

Order the SanDisk Extreme PRO 256GB card today at DSLRPros and keep your mission data secure from capture to delivery.

Storage & Performance

  • Capacity: 256 GB
  • Form factor: microSDXC™
  • Sequential read performance: Up to 200 MB/s
  • Sequential write performance: Up to 140 MB/s
  • Interface: UHS-I

Physical Specifications

  • Dimensions: 0.43" × 0.59" × 0.04"
  • Weight: 1.66 g
  • Model number: SDSQXCD-256G-GN6MA

Environmental

  • Operating temperature: -25°C to 85°C
  • Non-operating temperature: -40°C to 85°C

Features

  • Write speeds up to 140 MB/s
  • Optimized for capturing 4K UHD video
  • A2-rated performance for faster app loading

Compatibility

  • Compatible with microSDHC host devices
  • Compatible with microSDXC host devices
  • Compatible with microSDHC UHS-I host devices
  • Compatible with microSDXC UHS-I host devices

Warranty

  • Lifetime limited warranty
  • 1x SanDisk 256GB Extreme PRO® microSDXC™ UHS-I Card
Is the SanDisk Extreme PRO 256GB card suitable for extended professional drone missions?

Yes. With sequential write speeds up to 140MB/s and read speeds up to 200MB/s, the 256GB card supports sustained data capture across long mapping, inspection, and survey flights. The added capacity over smaller cards reduces the frequency of card swaps during multi-hour missions, and its U3/V30 rating ensures 4K UHD video records without dropped frames throughout extended sessions.

Why does the 256GB card have a faster write speed than the 128GB version?

SanDisk's Extreme PRO microSD lineup scales write speed by capacity. The 64GB and 128GB cards are rated up to 90MB/s write, while the 256GB and larger capacities reach up to 140MB/s write. This is a manufacturer-confirmed specification difference, not a product defect or inconsistency, and it means the 256GB card offers a meaningful performance advantage for write-intensive workloads like continuous 4K video recording.

How does this card perform in field conditions typical of enterprise drone operations?

The card is shockproof, waterproof, temperature-proof, and X-ray-proof, and operates across a wide range from -25°C to 85°C. These ratings support outdoor inspection sites, varied climate conditions, and the handling and travel involved in field operations, including airport security screening without risk to stored data.

What does QuickFlow Technology mean for post-mission workflows?

QuickFlow Technology optimizes the card's read performance for faster data offload after a mission. For operators processing large volumes of mapping imagery, LiDAR point cloud data, or extended video footage, faster transfer speeds reduce the time between landing and beginning data processing, which matters for time-sensitive deliverables and high-volume flight schedules.

Is the card covered by a warranty?

Yes. The SanDisk Extreme PRO microSDXC UHS-I Card is backed by a Lifetime Limited Warranty directly from SanDisk, providing long-term assurance for a component that holds mission-critical data.