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As Kryptonhite mentioned above, you can format it to FAT32 with the MAC OS. Follow the steps below to change the file format type of the portable drive for it to be compatible with both Mac and Windows. Please do not use Time Machine on Mac because it will change the. This week's best deals: $100 off the Mac Mini M1 and more. Plus an all-time low on the latest MacBook Air. Twitter Facebook Reddit Mail. BACKUP YOUR FILES BEFORE PERFORMING THESE STEPS This Lee Sapara with a 30 second short video on Formatting a USB Drive to Fat-32 on your mac. In Disk Utility.

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Summary :

How much do you know about APFS vs Mac OS Extended? Which Mac file system should you choose? How to format hard drive for Mac? If you have similar questions on your mind, please read this page carefully to find answers; the main differences between APFS and Mac OS Extended file system and several ways to format a hard drive (internal/external) on Mac will be introduced.

Mac (formerly known as Macintosh) refers to the personal computers that are designed, manufactured, and sold by Apple Inc. MacOS is one of the most popular operating systems in the world; it’s the main competitor of Windows.

Common Mac file system includes:

• APFS (Apple File System): the default file system used in macOS 10.13 and later versions.
• Mac OS Extended: the file system used in macOS 10.12 and earlier versions.
• FAT (MS-DOS) and exFAT: the system systems that are supported by both Mac & Windows.

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The following content first discusses on APFS vs Mac OS Extended; after that, it will tell you how to format a hard drive for Mac in several different ways.

Part 1: Introduction to APFS and Mac OS Extended

In this part, I’ll first introduce APFS and Mac OS extended to you. Then, I’ll compare these two file systems used on Mac for you in brief. You may ask what are the differences between APFS and Mac OS Extended, right?

APFS vs Mac OS Extended

APFS refers to Apple File System, which is a proprietary file system used by Mac devices running macOS 10.13 or later. Mac OS Extended is a journaling file system used by macOS 10.12 or earlier. APFS is best for solid state and flash drives while Mac OS Extended is best for mechanical drives, or drives used on older macOS.

What Is APFS Format

APFS (the full name is Apple File System) is a proprietary file system released by Apple Inc. It can be used on different devices running macOS High Sierra (10.13) and later, iOS 10.3 and later, all versions of iPadOS, watchOS 3.2 and later, or tvOS 10.2 and later. APFS is a new file system which was originally designed by Mac to fix core problems of Mac OS Extended.

What Is Mac OS Extended (Journaled)

Mac OS Extended, also known as HFS+, HFS Plus or HFS Extended, is actually a journaling file system released by Apple Inc. It was released in 1998 to replace HFS (Hierarchical File System, also known as Mac OS Standard or HFS Standard), which is the previous primary file system in Apple computers. Two main advantages of HFS+ when compare to HFS are: a. it gives support to much larger files; b. it uses Unicode for naming items.

Part 2: Which Is Better, APFS or Mac OS Extended

APFS vs HFS+ vs HFS:

APFS file system was announced in June 2016 to replace HFS+ (also known as HFS Plus or Mac OS Extended); the latter was used on all Mac computers as the primary file system since 1998 to replace the previous HFS.

Choose APFS for SSDs & Flash Storage Devices

When compared to Mac OS extended, APFS has been optimized a lot in terms of encryption, so it’s more suitable for flash and solid-state drive storage. APFS becomes the default file system for both for SSDs (Solid State Drives) and flash drives.

• In 2016, APFS was first released by Apple to replace Mac OS Extended (the previous default file system on Mac); it carries all sorts of benefits you can found in Mac OS Extended.
• A partial specification for APFS was published by Apple in September 2018 to allow the read-only access to APFS drive on even unencrypted and non-Fusion storage devices.

But don’t worry, you can still use the APFS on mechanical and hybrid drives. Sneakers and an oversized hoodie mac os.

To gain quality but free USB data recovery service, you should use MiniTool Power Data Recovery Free Edition; this post tells you how to recover USB data.

There are two main highlights in APFS.

1^st: fast speed. Copying and pasting a folder on APFS drive can be finished in an instant since the file system points to basically the same data twice.

• There are huge improvements in metadata so that many actions can be performed quickly; for example, confirming how much space the target file/folder takes up on an APFS drive.
• The reliability is also improved a lot. Users don't encounter corrupted files as often as they used to.

2^nd: reverse compatibility. If you are running 2016’s macOS Sierra or the later versions of macOS, congratulations, you have both read and write access to APFS, HFS +, and HFS file system. However, for users who run an older Mac (or a Windows operating system), they are not allowed to write to APFS-formatted drives.

Pros & Cons of APFS

Main advantages of APFS:

• It’s able to create point-in-time snapshots for users.
• APFS allows users to encrypt the full disk by using a single or multi-key so as to enhance the security.
• The checksums are used to ensure the integrity of metadata.
• It creates new records, instead of overwriting the existing ones, in order to avoid metadata corruption; the records may be corrupted because of system crash or other reasons.
• The storage management of APFS is more efficient than HFS+, resulting in helping users get additional free space.
• Users don't need to write changes twice by choosing APFS over HFS+; this will increase the system performance on some devices.
• The clones or multiple copies of the same file are allowed; it will only store the changes as deltas. This helps to reduce storage space greatly when users copy files, make revisions, or do other things.
• The APFS drive is generally more stable and reliable than the previous HFS+ or HFS drive.

Main disadvantages of APFS:

• Compression is not allowed on an APFS drive.
• It gives no support to the Fusion drives.
• The NVRAM (Non-volatile Random-access Memory) can’t be used even for data storage.
• The Checksums used are only available for ensuring integrity of metadata (that of user data can’t be guaranteed).
• You can only access the encrypted volumes from another other computer which runs macOS High Sierra.
• The biggest disadvantage of all seems to be: APFS wasn’t compatible with Time Machine for a long time in the past. Users of older Mac versions are told to make backups on Mac OS Extended drive unless they use a third-party backup tool rather than the built-in Time Machine.

Choose Mac OS Extended Journaled for Mechanical Hard Disks

Mac OS Extended (HFS+) is the default file system for all Macs from 1998 to 2017, until the new APFS replace it. Till now, it’s still the default file system for both mechanical and hybrid hard drives. You should keep it unchanged while you install the macOS or format external hard drive Mac. The HFS+ is a better choice than APFS on even current mechanical and hybrid hard drives.

Besides, you should definitely choose Mac OS Extended when you reformat external hard drive Mac considering that it may be used on older Macs running El Capitan or earlier versions of macOS. As you know, the new APFS file system is not compatible with these old macOS versions.

Pros & Cons of HFS+

Main advantages of HFS+:

• It gives support to the Fusion drives (which can’t be supported by APFS).
• It gives support to all versions of Mac OS X and macOS.
• You can encrypt volumes and then access them from any version of Mac OS X and macOS.

Main disadvantages of HFS+:

• There’s no point-in-time snapshot for users.
• The nanosecond standard is not used for Timestamps.
• The native file support for other file systems is too limited.
• The support to Mac OS Extended will be stopped on February 6, 2040.
• No checksum is used for metadata integrity or user data integrity.
• You can’t have concurrent access to the file system by a process.

Please ask yourself the following questions when you choose between APFS and Mac OS Extended:

• Are you formatting the internal disk or the external hard drive on your Mac?
• Which macOS are you running? Do you prepare to install macOS High Sierra or later?
• Is the Time Machine backup or bootable installer included in your daily schedule?
• Are you preparing to use the disk on another Mac or even Windows computer?

Bonus Tip: Choose exFAT for Hard Drives Used on Both Mac & Windows

Though the file system of main system drive on Mac is confined to APFS and Mac OS Extended, you can still consider exFAT (or the older FAT) when you format an external hard drive on Mac.

The most obvious benefit of using exFAT is that it can work with both Windows and macOS computers (you have both read and write access to the exFAT drive). Although there are solutions to read Mac formatted drive on Windows or read a Windows formatted drive on Mac, formatting drives to exFAT is still a convenient thing and an economical choice.

Part 3: How to Format Hard Drive for Mac

Users shouldn’t reformat the disk that built-in Mac causally unless they have special needs and they are professional enough. So this part will focus on how to format external hard drive for Mac by using the snap-in tool: Disk Utility (it can be used to format & manage both internal and external hard drives as well as disk images).

How to format an external hard drive for Mac? Please follow this guide.

Step 1: open Disk Utility on your Mac.

Go to the Applications -> select Utilities folder -> double click on Disk Utility.

Step 2: choose View -> Show All Devices.

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Please click on the View icon in the upper left corner of Disk Utility window. After that, please select Show All Devices from the drop-down list.

Step 3: erase/wipe the target disk.

Please connect the external hard disk in advance and make sure it’s appeared on Mac. Then, select the disk that you want to format from the left sidebar. After that, you should click on the Erase button in the right pane.

1. Give the disk a Name (the maximum length is 11 characters).
2. Select a proper file Format.
3. Choose a proper Scheme.
4. Click on the Security Options to choose how you'd like the drive to be formatted (optional).
5. Click on the Erase button.
6. Wait for the process to be finished.
7. Click on the blue Done button to close the window.

You can now start to use the formatted disk. Please click here to know how to format a disk for Windows computers in Disk Utility on Mac.

The file formats available for you to choose are:

• APFS
• APFS (Encrypted)
• APFS (Case-sensitive)
• APFS (Case-sensitive, Encrypted)
• Mac OS Extended (Journaled)
• Mac OS Extended (Journaled, Encrypted)
• Mac OS Extended (Case-sensitive, Journaled)
• Mac OS Extended (Case-sensitive, Journaled, Encrypted)
• MS-DOS (FAT)
• ExFAT

Click here to know more about the differences between these file formats.

That’s how to reformat a disk on Mac by using Disk Utility (the steps to reformat MacBook Pro are the same). Of course, there are also many third-party tools you can download to format the disk on your Mac.

How to Recover Formatted Hard Drive on Mac

Delta0 mac os. Data recovery from mac formatted external hard drive:

1. Download Stellar Data Recovery for Mac.
2. Follow the wizard to install it properly.
3. Launch the software right after installation.
4. Make sure the formatted drive is connected to your Mac.
5. Define the file type that you want to recover; you can select all types by enabling Recover Everything.
6. Click on the Next button to continue.
7. Choose the formatted disk/drive and click on the Scan button (enable Deep Scan to find more files).
8. Wait until the scan is finished.
9. Browse the scan results and choose what you want to recover.
10. Click on the Recover button and select a safe place to store the recovered data.

Extended reading:

Final Thoughts

Both APFS and Mac OS Extended are popular file systems supported by Mac computers. If you don't know which one is more suitable for you, please read part 1 and part 2 carefully (the advantages & disadvantages of these two Mac file systems are included). Part 3 teaches you how to format a hard drive for Mac by using the snap-in Disk Utility; besides, it offers an easy method for recovering data from a formatted drive on Mac. Hope this can help you decide which one to choose: APFS or Mac OS Extended, and prevent your important data from getting lost.

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:

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• 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 introduced in 2020 and 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:

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. If the card still won't mount, you might need to reformat your SD card.

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?

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. Formatting a card permanently deletes all of its files. Before continuing, make sure that you have a backup of any files that you want to keep on the SD card.

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.

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

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