Specification Brand : SimpleTech BulletPoint : EASY COMPATIBILITY | High-Capacity CFExpress Video Memory Card Compatible with Nikon D5, D6, Z6 / Z7, D850, and D500. May not be compatible with Highest Resolution Capture on the following Digital Cameras: Panasonic S1 / S1R, Canon EOS-1DX Mark III, Canon EOS R5 Mirrorless, Canon EOS C300 / C500 Mark III (Not recommended For Nikon Cameras) BulletPoint1 : Allows you to take more images, listen to more MP3s, or store more files BulletPoint2 : One of the fastest cards available, sustained write speeds up to 10MB per second (65X) BulletPoint3 : Guaranteed compatible with thousands of digital cameras, MP3 players, cellular phones and handheld computers BulletPoint4 : Lasts forever with SimpleTech's lifetime guarantee BulletPoint5 : Highest quality assurance rating available - ISO9001 Certified Color : 2 Pack CompatibleDevices : Camera DigitalStorageCapacity : 256 MB ExternallyAssignedProductIdentifier : 5055288450639 ExternallyAssignedProductIdentifier1 : 705487086218 ExternallyAssignedProductIdentifier2 : 0705487086218 ExternallyAssignedProductIdentifier3 : 00705487086218 HardwareInterface : secure_digital Hazmat : auto-grounding ItemName : SimpleTech 256 MB Secure Digital Card (STI-SD/256) ItemPackageDimensions_Height : 5.08 centimeters ItemPackageDimensions_Length : 22.86 centimeters ItemPackageDimensions_Width : 12.7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : secure-digital-cards Manufacturer : SimpleTech MemoryStorageCapacity : 256 MB ModelName : INCFE512G1800/1700/S800 ModelNumber : STI-SD/256 NumberOfItems : 1 PackageLevel : unit PartNumber : STI-SD/256 ProductDescription : Store any special moment with the SimpleTechSTI-SD/256 256 MB Secure Digital Card. Great for use with digital cameras, cell phones, MP3 players, PDA's or other devices that use the SD card format. Carry your digital photos, music and files with this SimpleTech STI-SD/256 256 MB Secure Digital Card! ProductSiteLaunchDate : 2006-04-07T22:56:27-00:00 ReadSpeed : 90 unknown_modifier SecureDigitalAssociationSpeedClass : class_10 Size : CF128 GB Style : SD128V90 SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 43202005 WarrantyDescription : 5 year warranty WarrantyType : Lifetime WriteSpeed : 550 MB per second