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How to insert memory cards correctly?
SD and MS cards are required to be inserted in with lable-side down, microSD and CF cards with lable-side up.
Does this memory card reader support connecting to USB-C phones/tablets?
Yes, but USB-C male to USB-A female adapter is required and make sure the operating system is latest. (Adapter sold separately)
What should I do if the transfer speed is quite slow?
(1) Connect to standard USB-A 3.0 interface;
(2) Read only one memory card at a time, as transfer speed might be affected by multi-cards simultaneous work.
What is the maximum card capacity it could support?
Max 2TB is allowed
Is the card reader compatible with CFexpress cards?
No, this card reader is compatible with Compact Flash Cards


How to insert memory cards correctly?
SD and MS cards are required to be inserted in with lable-side down, microSD and CF cards with lable-side up.
Does this memory card reader support connecting to USB-C phones/tablets?
Yes, but USB-C male to USB-A female adapter is required and make sure the operating system is latest. (Adapter sold separately)
What should I do if the transfer speed is quite slow?
(1) Connect to standard USB-A 3.0 interface;
(2) Read only one memory card at a time, as transfer speed might be affected by multi-cards simultaneous work.
What is the maximum card capacity it could support?
Max 2TB is allowed
Is the card reader compatible with CFexpress cards?
No, this card reader is compatible with Compact Flash Cards
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| Customer Reviews | ||||||
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| Price | ||||||
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| USB Type | ||||||
| USB A & C | USB C | USB A | USB C | USB C & A | USB C | USB C |
| Compatible Cards | ||||||
| SD, Micro SD | Micro SD | SD, Micro SD | SD, Micro SD | SD 4.0, Micro SD | SD 4.0, Micro SD | SD*2, Micro SD |
| Transfer Speed | ||||||
| 5Gbps | 5Gbps | 5Gbps | 5Gbps | 5Gbps | 5Gbps | 5Gbps |
| Max Reading Speed | ||||||
| 104 MB/S | 104 MB/S | 104 MB/S | 104 MB/S | 312 MB/S | 312 MB/S | 170 MB/S |
| Material | ||||||
| Aluminum | Zinc Alloy | Plastic | Aluminum | Aluminum | Aluminum | Plastic |
| Plug and Play | ||||||
| Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Brand | UGREEN |
| Media Type | SD Card, microSD, CompactFlash, Memory Stick |
| Connectivity Technology | usb |
| Special Feature | data transfer for photographers, usb card reader 4 ports |
| Color | Black |
| Additional Features | data transfer for photographers, usb card reader 4 ports |
| Compatible Devices | Camera, Laptop, Smartphone |
| Data Transfer Rate | 5000 Megabits Per Second |
| Hardware Interface | USB, USB 2.0, USB 3.0 |
| Slot Count | 4 |
| Operating System | Windows, MacOS, Linux, ChromeOS |
| Item Dimensions L x W x H | 2.67"L x 2.16"W x 0.59"H |
| Model Name | usb card reader |
| Global Trade Identification Number | 06957303833337 |
| Manufacturer | UGREEN GROUP LIMITED |
| Mfr Part Number | 30333 |
| Model Number | 30333 |
| Item Weight | 80 Grams |
| Item Type Name | Wireless charger |
| Built-In Media | 1 x USB 3.0 SD/TF Card Reader |
| Warranty Description | 1 |