Select Internal Memory Card Reader and look for the Speed entry. If you use a Mac desktop computer. Non-Apple systems won’t recognize cards formatted to Mac OS Extended. You might have to format a card that’s larger than 32GB with exFAT if you want to use it with a digital camera, GPS, or another device. About the SD and SDXC card. In VMWare Fusion, I connected my MacBook Pro’s “Apple Internal Memory Card Reader” to the virtual machine (this will temporarily disconnect the device from Mac OS X, so eject any card you have in the reader before attaching it to the virtual machine).

Supported Memory Cards：Sony SF-G Series/
Sony SF-G Series TOUGH Spec.

Flash memory used in memory cards has a limited number of write cycles because it gradually wears out as data is overwritten repeatedly over time. Once a memory card has reached the limit of write cycles, it is no longer able to accept data for recording, even while shooting.

SD Scan Utility helps you check the condition of your SD memory card. By scanning the flash memory, it tells you whether your SD memory card is working in good condition or is about to reach the limit. Knowing the condition in advance, you can avoid missing your important moment or scene to be recorded.
Just install SD Scan Utility on your computer. It will automatically check your SD memory card when it is inserted to the computer, showing an easy-to-understand warning message if the memory card is coming close to the limit of write cycles.

Inserting a supported SD memory card to the computer where this application is installed activates card scanning and instantly displays a result in the taskbar. (You can also manually start scanning.)
If the scanning result is 'normal,' it is just displayed through the icon in the taskbar without blocking your operations on the computer.

* Computer where this application is installed. You can use a card reader as well.
* After installation you need to select the drive into which you inserted a SD memory card. (for Windows PC)

The scanning result is indicated in an easy-to-understand manner through the icon and simple messages.
By clicking the icon in the taskbar (or on the menu bar in the case of the Mac), you can display a message window to learn more details.

If your memory card is close to the limit of write cycles, you will be alerted by a message recommending the use of a new memory card (this notification feature can be disabled according to your needs).
If the message “Your memory card is wearing out” appears, it is recommended that you use a new memory card, as soon as possible, in order to avoid a problem where the card suddenly fails to record data in the middle of shooting.
If “No more data can be written to your memory card” appears, you cannot record any more data to it. Use a new card immediately.

SD Scan Utility Download

Supported SD Memory Card : Sony SF-G Series
Sony SF-G Series TOUGH Spec.

* You need to use your computer to download this application.

Windows

Version:1.0.2.09050
File name:SD_Scan_Utility.zip
File size:75.4MB

Mac OS

Version:1.0.0.09060
File name:SDScanUtility_ver1.0.0.dmg
File size:15.2MB

New Version

Version 1.0.2.09050
(September 28, 2018)

This version fixes the problem with the auto-update check function.

Version 1.0.1.11270
(December 18, 2017)

This version increases the regions/areas where SD Scan Utility can be installed.
(If SD Scan Utility is already installed on your computer, you do not need to install this version.)

Operating Environment

Windows OS

Mac　OS

Note

One of the operating systems above must be factory-installed on your PC.
Operation cannot be guaranteed in homebuilt computers, upgraded computers, or multi-boot environments.
The operating environment above assumes that SD Scan Utility is used alone. Even if the operating environment is fully satisfied, there may be cases in which SD Utility is unable to operate properly.

* Operation-confirmed card readers: MRW-S1, MRW-E90

What is SD?

SD describes devices that conform to SD standards for non-volatile memory cards. See the SD Association website for details.

Are there size limitations for the cards that can be inserted into the SD slot?

Yes. The SD card specification for a memory card is 32mm by 24mm by 2.1mm. You can also use thinner cards, such as MultiMediaCards (MMC). Avoid using cards that have a thickness greater than 2.1mm, as they might damage the SD card slot if you try to insert them.

Which SD card formats work in the SD card slot?

Cards that conform to the SD 1.x, 2.x, and 3.x standards should work. The SD card slot can use:

• Standard SD, 4MB to 2GB
• SDHC (Secure Digital High Capacity), 4GB to 32GB
• SDXC, 4GB to 2TB
• MMC (MultiMediaCards)
• UHS‑II, up to 2TB (iMac Pro only)

You can use a passive adapter like the one shown here to make MiniSD, MicroSD, and higher density formats like MiniSDHC and MicroSDHC conform to the width and thickness specifications listed above:

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How fast can my Mac read or write to an SD card in the SD card slot?

Mac notebooks use the USB bus to communicate with the SD card slot. They have a maximum speed of up to 480Mbit/s. Mac desktops use the PCIe bus to communicate with the SD card slot. Desktops can transfer data at a faster rate.

Check the packaging that came with your SD media to determine the maximum transfer rate that your specific card uses.

To determine the maximum transfer speed of your Mac, you can use System Information. Choose Apple () menu > About This Mac and then click System Report.

If you use a Mac notebook:

1. Select Hardware, then select USB.
2. Select Internal Memory Card Reader and look for the Speed entry.

If you use a Mac desktop computer:

1. Select Hardware, then select Card Reader.
2. Look for the Link Speed entry. Computers that use the PCIe bus express their speed as GT/s.

Does the SD slot work with cards that exceed 32GB?

Yes. However, most media manufacturers preformat the media using common block-and-cluster sizes that don’t approach the theoretical limits of a given file system.

Most SD cards use the FAT32 file format, and preformatted FAT32 SD media is commonly available up to a capacity of 32GB. Media that exceeds 32GB usually uses the exFAT file system, while some smaller capacity cards use the FAT16 file format. Preformatted FAT16 media is generally available up to a capacity of 2GB.

If you use OS X Snow Leopard 10.6.5 or later, you can find out which file system you’re using:

1. Insert the media into the SD card slot.
2. Choose Apple menu > About This Mac.
3. Click System Report.
4. In the Hardware section, click Card Reader, and find the File System field.

Will the SD card slot work with SD cards that use the exFAT file system?

Yes. Any Mac that has an SD card slot and is running OS X 10.6.5 or later can use the exFAT file system.

exFAT is also supported in Boot Camp with Windows 7, 8.1, or 10 on any Mac made in 2011 or later with an SD card slot.

How do I insert media into the SD card slot?

When you insert the card, make sure that the metal contacts face down and point toward the computer. Don’t force media into the SD card slot, as this might cause damage.

How does my Mac use the media inserted into the SD card slot?

Your computer recognizes a card inserted into the SD card slot as a USB storage device. You can mount, read from, and write to the SD card just like you can with any other USB storage device.

I put the card in the slot, but it didn’t mount. What should I do?

Remove the card and insert it again. Sometimes the SD card won’t mount properly if you put it into the slot too slowly.

When I try to write content to the card, I get a 'cannot be modified' message. How can I fix this?

You see this message when you try to edit data on an SD card that’s locked. You need to use the lock slider to unlock the card before you can edit the data.

To eject the card, drag the icon that represents the card to the Trash. After the icon disappears from the desktop, you can remove the card from the computer. Adjust the lock slider tab to unlock the card, then reinsert the card into the slot. See the manufacturer’s instructions for the location of the slider tab.

Can I use Disk Utility to reformat an SD card?

Mac Card Reader Driver

You can use Disk Utility to partition and format an SD device as FAT32 (using the MS-DOS FAT setting) or Mac OS Extended. The Mac OS Extended format can be used only on Macintosh systems. Non-Apple systems won’t recognize cards formatted to Mac OS Extended.

You might have to format a card that’s larger than 32GB with exFAT if you want to use it with a digital camera, GPS, or another device. When in doubt, format the card in the device that you intend to use it with.

Can I install macOS on an SD storage device and use it as a startup volume?

Use Disk Utility to change the default partition table to GUID. Then format the card to use the Mac OS Extended file format.

How do I remove a card from the SD card slot?

Before you remove the card, allow any data transfer to SD media to complete. To eject the card, drag the icon that represents the card to the Trash. After the icon disappears from your desktop, you can remove the card from the slot.

Don't remove a card while your Mac is sleeping, as this could lead to data loss. Always wake your computer and eject the SD card before removing it from your Mac.

Can I use Secure Digital Input Output (SDIO) cards?

Can I use macOS to see the specifications for the interface hardware and media inserted in the SD card slot?

You can get information about the interface hardware and the media that you inserted in the slot from the System Information:

1. Choose Apple menu > About This Mac.
2. Click System Report.
3. In the Hardware section of System Information, select USB.
4. In the list of USB devices, select Internal Memory Card Reader to access information about the interface hardware and the media inserted into the SD card slot.

Can I use the SD card slot while running Windows using Boot Camp?

The SD card slot works with Boot Camp in all supported versions of Windows. You’ll need to download and install the Windows Support Software to use the SD card slot with Windows.

Learn more about using Windows on a Mac.

Can I use an SDXC card on my Mac with Windows?

You can use an SDXC card in Windows 7, Windows 8, and Windows 10 with these Mac computers:

• MacBook Pro (Early 2011 and later)
  MacBook Pro models from 2016 and later don't have a built-in SD card slot. You can use a USB-C card reader, or a combination of a USB-C to USB Adapter and a USB card reader.
  
• MacBook Air (Mid 2011 and later)
• Mac mini (Mid 2011 and later)
  Mac mini (Mid 2010) doesn't support SDXC cards.
• iMac (Mid 2011 and later)
  iMac (Mid 2010) doesn't support SDXC cards.

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Can I use an SD, SDHC, or SDXC card to install Windows on my Mac?

Sd Card Readers For Mac

No. You can’t use SD, SDHC, or SDXC cards with Boot Camp to install Windows software on Mac computers.