The X4SD USB 2.0 SD Card Reader allows simultaneous access to four SD Card media. The X4SD accepts SD, SDHC, and SDXC Cards directly, and can use the mini and micro versions of those same cards when they are first inserted in an SD Card adapter. The X4SD also accepts MultiMediaCard and its derivatives. Extremely compact, the reader's vertical slot orientation allows for single-handed card insertions. The slots do not feature push-pull mechanisms, and feature a staggered insertion depth to facilitate grasping of adjacent cards. The X4SD USB 2.0 SD Card Reader Four Slot works well as a card duplicator, presenting all inserted cards simultaneously. A pinhole LED located by the X4SD's USB port indicates power.

• Data transfer speeds of up to 40 Gbps let you move large files rapidly, while the compact aluminum construction offers durability, allowing for use on the go. This IOGEAR Thunderbolt 3 six-slot SD card reader has a card slot LED indicator that flashes when accessing, reading or writing data.
• The 4SDHUB USB 2.0 Four (4x) Slot SD Card Reader with 3 Port Hub allows simultaneous access up to four SD Card media. The 4SDHUB accepts SD, SDHC, and SDXC Cards directly, and can use the mini and micro versions of those same cards when they are first inserted in an SD Card adapter. The 4SDHUB also accepts MultiMediaCard and its derivatives.
• 4 slots on top, Support SD/SDHC/SDXC/MicroSD/MicroSDHC/MicroSDXC memory cards USB 2.0 high speed transfer between 4 cards without changing each memory cards Reads and write at same time.
• We believe that this Anker 4-Port USB 3.0 Portable Card Reader can allow Windows 10 to recognize an SD card and an MS card at the same time. Please be sure to use your finger nail to press the cards down completely. Meanwhile, we notice in the first paragraph you mentioned they are both MS cards.

Staples.com: StarTech.com 4 Slot USB C SD Card Reader, USB 3.1 (10Gbps), SD 4.0 UHS-II, Multi SD Card Reader, USB C to SD Card Adapter with fast and free shipping on select orders.

The reader's support for SDXC is limited to specification compliant formatted cards. It will not read cards formated under Mac OS X, Windows 2000/XP (SP1) that are non-compliant (exFAT) format SDXC. Care must be exercised when inserting Reduced Size MultiMediaCard (RSMMC), if they are inserted the wrong direction, they can fall into the reader.

Features and Specifications

• Supports, SD, SDHC, and SDXC cards
• Four (4) SD Card Slots with easy vertical access
• USB bus-powered; no additional power source required
• Backwards compatible with USB 1.1 hosts and devices
• Supports Hot-Swap and Plug-N-Play

• 1 Year Limited Warranty

• Secure Digital (SD): SD, SD 3.0 UHS-I, SDXC, SDHC, SD Ultra II, miniSD, miniSDHC, microSD, microSDHC, T-Flash and etc.
• MultiMediaCard (MMC): MMC-I, MMC-II, MMC 4.0, MMC Dual Voltage, RS-MMC, RS-MMC Dual Voltage, RS-MMC 4.0, MMC Micro, MMC Mobile, MMC 4.0 Dual Voltage, RS-MMC 4.0 Dual Voltage, MMC Micro, and etc.
• * optional adapters might be required on some media cards

• Universal Serial Bus 2.0 (EHCI)
• Universal Serial Bus 1.1 (OHCI)

• Up to 1.5, 12, and 480 Mbps (megabits) transfer rates

• * speed of reading media is dictated by limitations of media itself
• High Speed 480Mbps (Megabits)
• Full Speed 12Mbps (Megabits)
• Low Speed 1.5Mbps (Megabits)

• One (1) available USB Port
• 32-bit and 64-bit Windows XP/Server 2003/Vista/Server 2008/Windows 7

• One (1) available USB Port
• Mac OS X 10.2 or later

• One (1) available USB 3.0 port (also backwards compatible with USB 2.0 and 1.1 ports)
• Any GNU/Linux based system that fully supports USB
• Known to work, but unsupported on other X86 Unix-like (ie. BSD) systems with USB mass storage support

• Operational Voltage: DC +5 Volts direct from USB Bus Power

• Operating temperature: 0° C to 40° C
• Relative Humidity: 0% to 80% (max.) non-condensing

• One (1) external card reader
• One (1) 0.5m (Appox.) USB 2.0 cable

• FCC Class B
• CE

• 36.0 x 36.0 x 38.5mm (LWD)
• 28g (approx.)

Support

Automating X4SD USB 2.0 SD Card Reader Four (4) Slot Operations

Automating file copies, binary (byte-for-byte) imaging, and more.

Just as when it comes to determining the most fitting SD card, selecting the best SD card readers is important. Choosing the right SD card reader ensures media is efficiently and reliably transferred between production and post-production. Factors such as interface, compatibility, durability, and quality should be considered.

We’ve narrowed down the list of the best SD card readers of 2020 for each category:

Best Overall:

Sd Card Reader For Pc

Prograde Digital Dual Slot Card Reader ()

Features:

• USB 3.1 Gen 2 Type-C interface
• Transfer speeds up to 1.25 GB/s on each slot
• Magnetic mounting plate

The Prograde Digital Dual Slot is one of the very best SD card readers in 2020. This card reader is ideal for any type of workflow, project size, and setting. The Prograde Digital card reader uses the USB 3.1 Gen 2 Type-C interface allowing for transfer speeds up to 1.25 GB/s from each of the two slots.

For the first time, the Prograde Digital Dual Slot card reader is designed with a magnetic base. The magnetic base attaches to a metal plate and can then be mounted onto the back of a laptop, work station, and more.

Best CFexpress Card Reader:

SanDisk Extreme PRO reader ()

Features:

• CFexpress Card Type B compatibility
• Ideal for RAW 4K workflows
• USB 3.1 interface

If you’re shooting in 4K, 6K, or even 8K, CFexpress Card Type B is the way to go, and the SanDisk Extreme Pro Reader is the first choice for transferring data from these blazing fast cards. The SanDisk Extreme PRO reader uses a USB 3.1 interface, so it’s capable of handling the sizable read and write speeds of CFexpress cards.

Best for XQD:

Sony MRW-G1 ()

Features:

• USB 3.1 Gen 2 and USB Type-C interface
• Sony XQD, CFexpress, and M series compatibility
• USB-C to USB-C, and USB-C to USB-A cable included
• Compact and lightweight

The incredibly compact and lightweight Sony MRW-G1 card reader is perfect for creators who prefer XQD memory cards. The MRW-G1 has a USB 3.1 Gen 2 input for speeds up to 10Gbit/s, and a USB Type-C input for further compatibility. The package includes USB-C and USB-A conversion cables for convenience.

Best for CFast:

G-Technology EV Series Reader ()

Features:

• CFast 2.0 Memory Card compatibility
• USB interface
• Tough aluminum design
• 3-year limited warranty

The G-Technology EV Series Reader is geared towards those using CFast 2.0 memory cards. The CFast format is quicker than the CF format and can easily support a 4K workflow. The EV series reader uses the common USB interface and is crafted with aluminum so it can withstand traveling and drops. G-Technology offers a 3-year limited warranty on this CFast 2.0 reader.

Best Quality and Compatibility:

Lexar Multi-Card Reader ()

Features:

• SD, microSD, and CompactFlash compatibility
• USB 3.1 and 2.0 interface

The Lexar Multi-Card Reader is an awesome tool for those switching between card types and inputs. This card reader has read speeds of up to 312MB/s for SD and micro SD cards, and speeds up to 160MB/s for CompactFlash cards. The reader includes both USB 3.1 and 2.0 ports for different inputs.

Kingston Technology Hi-Speed Reader ()

Features:

• SD, microSD, CompactFlash, and Memory Stick compatibility
• USB 3.0 high-speed port
• USB 2.0 backwards compatibility

The Kingston Technology Hi-Speed Reader is similar to the above Lexar, but it also supports Memory Stick memory cards and relies on the USB 3.0 interface. The Kingston Hi-Speed reader is one of the more cost-effective options.

Best on a Budget:

Delkin Devices Universal Card Reader ()

Features:

• SD, microSD, CompactFlash, Memory Stick, and xD Picture Card compatibility
• USB 3.0 interface with 2.0 and 1.1 backwards compatibility
• Plug & Play

The Delkin Devices Universal Card Reader is both price-friendly and adaptable. The reader supports five different memory card types, and does it all at a reasonable price. Users just need to plug the Delkin Devices Universal Card Reader in, and they are ready to transfer media via USB 3.0, 2.0, and 1.1.

Transcend Card Reader ()

Features:

• SD, microSD compatible
• USB 3.0 interface

If you’re on a budget, this Transcend Card Reader is the way to go. The card reader costs a mere , and works with SD and microSD memory card types.

Most Portable:

Green Extreme GX-CR-10 ()

Features:

• 4-in-1 compatibility: SD, microSD, CompactFlash, and Memory Stick
• USB 2.0 interface

Hp Sd 4 Card Reader

Last on the list is the Green Extreme GX-CR-10 card reader. The Green Extreme is no larger than a standard thumb drive but is capable of transferring media from four different memory card types via a USB 2.0 interface. It’s ideal for light photography SD cards.

Usb 3.1 Card Reader

Looking to upgrade your SD cards? Check out these 4 best SD cards for photography.

Rocketek Sd Card Reader

Feature photo via Shutterstock