Comparison chart for best memory card for a7rii 
Top 15 best memory card for a7rii Review with Features
- Ideal for recording 4K UHD video: Samsung MicroSD Evo is perfect for high res photos, gaming, music, tablets, laptops, action cameras, dslr’s, drones, smartphones (Galaxy S10, S10+, S10e, S9, S9+, Note9, S8, S8+, Note8, S7, S7 Edge, etc.), Android Devices and more
- Ultra-fast read write speeds: Up to 95MB/S Read and 20MB/S Write Speeds; Uhs Speed Class U1 and Speed Class 10 (Performance may vary based on host device, interface, usage conditions, and other factors). Operating Voltage: 2.7-3.6V
- Built to last reliability: Shock proof memory card is also water proof, temperature proof, x ray proof and magnetic proof
- Extended compatibility: Includes full-size adapter for use in Cameras, Laptops and Desktop Computers
- Save time with card offload speeds of up to 200MB/s powered by SanDisk QuickFlow Technology (Up to 200MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X = 150KB/sec. SanDisk QuickFlow Technology is only available for 64GB, 128GB, 256GB, 512GB and 1TB capacities. 1GB=1,000,000,000 bytes. 1TB=1,000,000,000,000 bytes. Actual user storage less.)
- Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately)
- Shot speeds up to 140MB/s (Write speed up to 140MB/s. Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X = 150KB/sec.)
- Perfect for shooting 4K UHD video and sequential burst mode photography (Full HD (1920x1080) and 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes and other factors. See HD page on SanDisk site.)
- UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) (UHS Speed Class 3 designates a performance option designed to support 4K UHD video recording with enabled UHS host devices. UHS Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS enabled host devices. See the SD Association’s official website.)
- Ideal for Android smartphones and tablets, and MIL cameras. Operating Temperature- (-13°F ) to 185°F (-25°C to 85°C)
- Up to 128GB to store even more hours of Full HD video (2). 1GB=1,000,000,000 bytes. 1TB=1,000,000,000,000 bytes. Actual user storage less. (2) Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors.
- Up to 120MB/s transfer speeds let you move up to 1000 photos in a minute (5). Up to 120MB/s read speed, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speed. Write speeds lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. (5)Based on internal testing on images with an average file size of 3.55MB (up to 3.7GB total) with USB 3.0 reader. Your results will vary based on host device, file attributes, and other factors.
- Load apps faster with A1-rated performance (1). (1) A1 performance is 1500 read IOPS, 500 write IOPS. Based on internal testing. Results may vary based on host device, app type and other factors.
- Get high-speed performance with UHS-II technology (U3) for a read transfer speed up to 250MB/s (1667x)
- Captures high-quality images and extended lengths of stunning 1080P full-HD, 3D, and 4K video with a DSLR camera, HD camcorder, or 3D camera
- Large capacity options up to 256 GB let you enjoy shooting longer without changing cards
- High-speed file transfer from card to computer to dramatically accelerate workflow
- Backwards compatible with UHS-I devices and backed by limited lifetime product support. Operating Temperature-0° to 70° C (32°F to 158°F)
- Capture, Store and Transfer Files Effortlessly: Samsung microSD EVO Select is best for high res photos, gaming, music, tablets, laptops, action cameras, drones, phones, Android devices and more
- Ultra Fast Read/Write Speeds: Up to 100MB/S Read and 90MB/S Write Speeds; UHS Speed Class U3 and Speed Class 10 (Performance may vary based on host device, interface, usage conditions, and other factors)
- Built to Last Reliability: Keep your memories, adventures and data safe against water, extreme temperatures, and other harsh conditions; Memory card is waterproof, temperature proof, X ray proof and magnetic proof
- More Space and Higher Speed: Free up your devices with the largest capacity, perfect for 4K UHD video (4K UHD video support for 51GB, 256GB and 128GB cards. Host device compatibility my vary)
- Capacity to Live Large: With massive amounts of storage, 512GB is enough for 24 hours of 4K UHD video, 78 hours of Full HD video, 150,300 photos, or 77,300 songs
- IDEAL FOR RECORDING 4K UHD VIDEO: Samsung microSD EVO Select is perfect for high res photos, gaming, music, tablets, laptops, action cameras, DSLR's, drones, smartphones (Galaxy S20 5G, S20 5G, S20 Ultra 5G, S10, S10 , S10e, S9, S9 , Note9, S8, S8 , Note8, S7, S7 Edge, etc. ), Android devices and more
- ULTRA FAST READ WRITE SPEEDS: Up to 100MB S Read and 60MB S Write Speeds; UHS Speed Class U3 and Speed Class 10 (Performance May Vary Based on Host Device, Interface, Usage Conditions, and Other Factors)
- BUILT TO LAST RELIABILITY: Memory Card Is Also Water Proof, Temperature Proof, X Ray Proof and Magnetic Proof
- EXTENDED COMPATIBILITY: Includes Full Size Adapter for Use in Cameras, Laptops and Desktop Computers. Operating Voltage-2.7 3.6V
- 10 YEAR LIMITED WARRANTY: 10 Year Limited Does Not Extend to Dashcam , CCTV, Surveillance Camera and Other Write Intensive Uses
- Bundle with (1) 128GB SanDisk microSD card and (1) Everything But Stromboli Multi-Slot Card Reader - Includes SD, Micro SD (TF), M2, and MS slots for easy transfer
- Compatible with any Samsung Phone with microSDHC or microSDXC port such as A71, A01, A11 and many other Samsung Phones (check device manual for exact compatibility)
- Read speeds up to 120mb/s; rated A1 for app performance and UHS Speed Class U1 and Speed Class 10 for Full HD video recording and playback
- Shockproof, temperature-proof, waterproof, and X-ray-proof
- Ideal for Android-based smartphones and tablets for more expandable storage
- Special memory card designed especially for action cameras and GoPro. Supports 4K High-quality shooting
- Outstanding preserve & transfer performance, the read & write speed is up to 90MB/s and 45MB/s
- Built for use and last in extreme environments. It offers 4 trustworthy protections: waterproof, dustproof, x-ray proof and cold resistant
- Adopting new printing technology to fulfill the goal of being an eco-friendly product
- Lifetime warranty. Free Technical Support and Customer Service: Click "Sold by TEAMGROUP Inc." >> "Ask a question" button
- Great choice for compact to mid-range point-and-shoot cameras
- Quick transfer speeds up to 120MB/s(1) to back up those moments. (1)Up to 120MB/s read speed, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.
- Up to 128GB to store tons of pictures and even more Full HD video(2). (2)Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors. Visit the SanDisk Video Knowledge Base for more information. 1GB=1,000,000,000 bytes. Actual user storage less.
- Exceptional video recording performance with UHS Speed Class 1 (U1)(5) Class 10 rating for Full HD video (1080p)(2). (5)UHS Speed Class 1 (U1) designates a performance option designed to support real time video recording with UHS enabled host devices. See the official SanDisk website for more information on UHS speed.
- Compatible with SanDisk SD UHS-I card reader (sold separately) for speeds up to 120MB/s(1)
- Exclusive “Made for Amazon” SD memory card - The only one tested and certified to work with your Fire Tablet and Fire TV
- Load your Fire Tablet with more fun - By adding space for additional photos, music and movies
- Download your apps and games directly to the SD card
- Class 10 performance for Full HD (1080p) video recording and playback
- Designed to perform multiple simultaneous activities with no lag or delay
- Up to 160MB/s read speeds to save time transferring high res images and 4K UHD videos (2); Requires compatible devices capable of reaching such speeds
- Up to 90MB/s write speeds for fast shooting; Requires compatible devices capable of reaching such speeds
- 4K UHD and Full HD Ready with UHS speed class 3 (U3) and video speed class 30 (V30)
- Rated A2 for faster loading and in app performance
- Built for and tested in harsh conditions: Temperature Proof, Water Proof, shock Proof and x ray Proof
- Ideal for Recording 4K UHD Video: Samsung micro SD EVO Select is perfect for high res photos, gaming, music, tablets, laptops, action cameras, DSLR's, drones, smartphones (Galaxy S20 5G, S20 5G, S20 Ultra 5G, S10, S10 , S10e, S9, S9 , Note9, S8, S8 , Note8, S7, S7 Edge, etc. ), Android devices and more
- Ultra-Fast Read Write Speeds: Up to 100MB S Read and 90MB S Write Speeds; UHS Speed Class U3 and Speed Class 10 (Performance may vary based on host device, interface, usage conditions, and other factors)
- Built to Last Reliability: Memory card is also water proof, temperature proof, X ray proof and magnetic proof
- Extended Compatibility: Includes full size adapter for use in cameras, laptops and desktop computers
- 10 Year Limited : 10 year limited does not extend to Dashcam, CCTV, Surveillance camera and other write intensive uses
- ALL THE SPACE YOU NEED: Store tons of media on your phone, load games or download more apps on your tablet at top-notch speed, making transfers seamless and reliable
- FAST AND SMOOTH: With superfast U3, class 10 rated transfer speeds of up to 130MB/s¹,²and UHS-I Interface³ big apps load and run smoothly, while 4K video remains sharp with A2, V30, and USH-I Interface
- EXPAND AND STORE BIG: Find your perfect fit from 64GB, 128GB, 256GB and 512GB; Select the best capacity for all your memories
- YOU'RE FULLY PROTECTED: EVO Select Plus provides reliable storage and takes on life’s adventures with water⁴, temperature⁵, X-ray⁶, ⁷magnet, drop⁸, and wears⁹ out protection; Backed by a 10-year limited warranty; Proofs are for the microSD card and do not include the adaptor
- FLASH MEMORY CARD: Performance and reliability you can count on from the flash memory brand; All firmware and components are produced in-house
- FROM PASSION TO PROFESSIONAL IN AN INSTANT | Class-10 SDXC UHS-I Memory Cards Provide the Expanded Storage & High-Speed Performance You Need to Take Your Hobby to the Next Level | Store, Save & Transfer 1080p Full HD, 3D & 4K Videos, High Definition Photographs, MP3 Music & Business Files Without Fail
- SUPERCHARGED SPEED FOR STUNNING RESULTS | Capture & Upload Images & Recordings with Gorgeous Color, True-to-Life Detail, Sharp Focus & the Fastest Data Transfer Possible | Featuring a Video Class Speed Rating of V30, These Lightning-Fast Cards Allow You to Read/Write at 90/60 MB/s—Perfect for Pro Applications
- EXTENDED CAPACITY FOR ALL YOUR LARGE FILES | Whether You’re Working with a Digital Camera or HD Camcorder, Never Worry About Running Out of Room! | Extreme SD 128GB Memory Cards Can Hold 32,000 12-Megapixel Photos; 24,000 4-Minute MP3 Songs; 488 Minutes of Full HD Video; or 264 Minutes of 4K Ultra HD Video
- LONG-TERM STORAGE THAT’S BUILT TO LAST | Wherever Your Work or Hobby Takes You, Shoot Confidently Knowing These SDXC Cards are 100% Waterproof, Temperature-Proof, Shock-Proof & X-Ray Safe for Airport Security
- THE CARDS YOU NEED TO CREATE KILLER CONTENT | No More Dropped Frames, Corrupted Files, or Hours-Long Upload Times! | Get the Professional-Grade File Storage Needed to Produce Amazing Multimedia | Excellent Choice for Wedding Videographers, Photographers, Filmmakers, Vloggers & Social Media Influencers
- Waterproof (IPX8)/ Dustproof (ipx6)3
- Up to 277MB/s read speed and 150MB/s write speed
- Toughness design (18x stronger than standard UHS II card)
- Supports 4K video recording
- Five (5) year limited
Are Any Consideration Before Buying best memory card for a7rii
When looking to buy best memory card for a7riithere are a few things you should keep in mind. Here are some important factors to think about before making your purchase:
Realize your requirements
The first step is to figure out what your needs or requirements are. When you not know about your own needs than its most possible to choose the wrong product may it can be a waste of good amount of investment.
Understand Your NeedsThe first step is to understand your demands or requirements. If you aren’t aware of your needs, there’s a big chance you’ll spend a lot of money on the wrong things at the wrong time. So, first and foremost, we recommend that you carefully consider your requirements for a product. Simply create a list of your requirements. This simple activity will assist you in simplifying your purchasing experience. Then you will be able to know your prioroties which is the most important thing.
Budget Vs PriceBefore you go for buying anything, one thing you must think about is budget. Any amount can be set on the price tag of your desired product. That depends on different expences like raw material purchasing, manufacturing, transportation, operational costs and their brand value playes a huge role there. When you demand for a higher quality product, you should be prepared enough to spent that level of bucks. That’s why budget matters so much. And this universal truth is effective for your best item as well. You may heard this popular sayings, “Cut your coat, according to your cloth”. Make a search on the internet and find those products first whom you really need. Analyze their prices and features thoroughly.Now you need to accumulate those information and make a proper comparison which will help you to choose the best one. The biggest question may come to your mind at this point which is your pocket is ready to spent such amount of money to buy this best or not. Without any hesitation, go for it if the answer is yes. But if not, then remember, you always have the second best option to choose yet.
Select the Correct BrandMost of the time, we are biased toward certain brands due to emotional attachments. This practice has a positive impact on some people and has a negative impact on others. However, there is no way to argue with the concept of relying on well-known brands. After having enough money in your pocket its going to half way easy to make decision of purchasing. But one thing remains, if you are not 100% sure that your brand of choice makes the best product that you are seeking for. As a result, you must exercise extreme caution when determining whether or not you are selecting the appropriate brand for your specific product. People are classified into two categories. One is completely reliant on a specific brand, while the other is unconcerned. What he requires is the right product for the amount he is paying. The category that you belong maybe unknown to us.Don’t worry here you will get few hints which will be beneficial for choosing the best product from the right brands.
- You must be well-versed on the brand.
- What others are saying about this brand.
- Try to calculate the avarage rating score of your choosing products of that brand.
- Contrast the features with those of competitors.
- Are those features sufficient for your needs?