SD/TF portable card reader is a device specifically designed to read SD cards (Secure Digital cards) and TF cards (TransFlash cards, also known as microSD cards). It is typically connected to computers, laptops, smartphones, or tablets through USB-A/C interface, allowing users to easily read, transfer, and manage data from storage cards. Due to its compact size, it is usually designed to be easy to carry and suitable for mobile office, data transmission, or media storage management.

Onten-CR537S is a multi in one card reader with USB 3.0 interface, with USB-A and USB-C interfaces on both ends, supporting dual port universal use. Compared to traditional card readers, the additional USB-C interface greatly enhances its daily practicality, supporting OTG function, making it easy to view photos taken by cameras and other devices, and share them with friends and family in the first time.

Onten-CR537S is a multi in one card reader with USB 3.0 interface, featuring SD+TF card slots on the side. It supports simultaneous reading of memory cards and USB drives, and can read memory cards with a maximum capacity of 2TB. SD card support: SD, SDHC card types, TF supports Micro SD, SDHC, MMC, RS-MMC, UHS-I card types. Dual card slot design, supports simultaneous reading and writing of USB 3.0 and single memory card, reduces frequent plugging and unplugging, eliminates tedious operations, and improves transmission efficiency.

Onten-CR537S multi in one card reader with USB 3.0 interface is different from the mainstream multifunctional card reader in that the USB-A female socket interface of the CR537S is 3.0, which can support both 3.0 USB flash drives or hard drives when using the card reader. This allows the contents of the card to be copied to each other with the USB flash drive or hard drive, greatly saving users'' usage time. USB 3.0 high-speed transmission, 5Gbps transmission rate, faster speed. Onten-CR537S multi in one card reader with USB 3.0 interface features a small double-sided cap design, which effectively prevents dust and water damage to the USB interface and USB-C interface when not in use, resulting in poor contact; And it has added a hanging rope mouth. If you often need to use the card reader outside, you can hang it together with the key for easy access.

Onten-CR537S multi in one card reader with USB 3.0 interface is perfectly compatible with multiple systems such as Windows 11, 10, 8.1, 8, 7, XP, Vista, Mac OS, Linux, Chrome OS, etc. It does not require any driver installation, is plug and play, supports hot plugging and automatic detection.