Works on the following IOGear CAC reader models:
GSR202, GSR202V, & GSR203
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). About the SD and SDXC card slot on your Mac. More ways to shop: Visit an Apple Store, call 1-800-MY-APPLE, or find a reseller.
1. Information Some IOGear CAC readers have a firmware version that will not work on a Mac (AU9540), this page will show you how to change it to AU9520, which will work on your Mac using a program called EepromMP. 2. This procedure must be completed using a Windows computer (or Bootcamped Mac), it will not work using a virtual version of Windows (i.e. Parallels, VMware, or Virtual Box) 2.1 Install the AU9540_V1.7.2.0 driver (from the CD in the box), then plug in the GSR202, GSR202V, or GSR203 to your Windows computer.You may also download it from: http://www.iogear.com/support/dm/driver/GSR202 2.2 Double click EepromMP.exe found at: http://militarycac.com/CACDrivers/iogear/AU9540_EEPROM.zipAU9540 reader will look like Figure 1. Click the Setting button (DO NOT insert your CAC in the reader). Figure 1 2.3 Match your screen to the information below completely, and then click OK to go back to the main page. (Figure 2)
Figure 2
2.4 Click Write Eeprom to program the external EEPROM. (Figure 3)
Figure 3
2.5 When write Eeprom is finished, a SUCCESS message will be displayed (Figure 4) (DO NOT insert your CAC). After the task is finished, click Cancel to quit the program
Figure 4
2.6 Unplug the reader, and then plug it back into your computer (very important step)! 2.7 You are finished.Try your CAC reader on your Mac now.
If you have any problems with your reader, please contact IOGear. http://iogear.custhelp.com
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:
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:
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:
If you use a Mac desktop computer:
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 donât 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 youâre using: Download latest pdf reader for mac.
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. Donât 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 didnât mount. What should I do?
Remove the card and insert it again. Sometimes the SD card wonât 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 thatâs 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 manufacturerâs instructions for the location of the slider tab.
Can I use Disk Utility to reformat an SD card?
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 wonât recognize cards formatted to Mac OS Extended.
You might have to format a card thatâs 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:
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. Youâll need to download and install the Windows Support Software to use the SD card slot with Windows.
Adobe Pdf Reader Mac
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:
Adobe Reader 11 For Mac
Can I use an SD, SDHC, or SDXC card to install Windows on my Mac?Belkin Card Reader Driver For Mac
No. You canât use SD, SDHC, or SDXC cards with Boot Camp to install Windows software on Mac computers.
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