Original price
Rs. 3,331.00
-
Original price
Rs. 3,331.00
Original price
Rs. 3,331.00
Current price
Rs. 1,503.00
Rs. 1,503.00
-
Rs. 1,503.00
Current price
Rs. 1,503.00
| /
3 READER SLOTS • 170MB/S • STORES 4 SPARES
UGREEN CM868 55886 USB-C 3-Slot Card Reader with 4-Card Case
Overview
UGREEN 55886 is a USB-C reader with two active SD slots, one active microSD/TF slot and a magnetic compartment for four spare cards. This model guide separates connector bandwidth from real card performance and explains every important compatibility boundary before you move valuable files.
SKU 55886Active: SD1, SD2 and microSD/TF. Passive storage: 2 × SD plus 2 × microSD under the magnetic cover.Up to approximately 170MB/s with a suitable high-speed card and host. Simultaneous activity shares available bandwidth.
CM868 three-slot USB-C reader with its magnetic four-card storage cover
Key features
Reader role
a USB-C reader with two active SD slots, one active microSD/TF slot and a magnetic compartment for four spare cards.
Host connection
integrated USB-C cable; the host port must support USB data or OTG.
Card layout
Active: SD1, SD2 and microSD/TF. Passive storage: 2 × SD plus 2 × microSD under the magnetic cover..
Practical speed
Up to approximately 170MB/s with a suitable high-speed card and host. Simultaneous activity shares available bandwidth.
Model check: Similar-looking UGREEN readers can differ in host plug, card protocol, simultaneous access, extra USB ports and charging. Match SKU 55886 rather than buying by appearance alone.
Ports, slots and connection map
Host side: integrated USB-C cable; the host port must support USB data or OTG.
Reader and accessory side: Active: SD1, SD2 and microSD/TF. Passive storage: 2 × SD plus 2 × microSD under the magnetic cover..
Extra function: The storage recesses are not reader slots. The cover is magnetic, but the case is not advertised as waterproof, dustproof, crushproof or impact-certified.
Direction rule: A card reader is a host accessory. It must connect to a device that can act as a USB host; connecting two accessories together does not create a host.
Open CM868 layout separating active reader slots from passive spare-card storage recesses
Speed explained without the marketing blur
USB/interface ceiling
Up to 5Gbps USB interface bandwidth; the actual card pathway is advertised up to 170MB/s.
Memory-card ceiling
Up to approximately 170MB/s with a suitable high-speed card and host. Simultaneous activity shares available bandwidth.
UHS generation
SD 3.0 / high-speed UHS-I-class workflow as shown in media; slot shape does not establish UHS-II operation.
Real-world result
The slowest link wins: card, slot mode, reader controller, host port, file system, thermal state, file sizes and simultaneous activity all matter.
Never equate 5Gbps or 10Gbps with card speed. USB values describe theoretical link signalling. SD and microSD media usually operate at much lower sustained rates, and many small files transfer more slowly than one large sequential file.
Card formats, capacity and file systems
Supported card families
SD, SDHC, SDXC, microSD/TF, microSDHC and microSDXC.
Capacity boundary
File-system caveat
The card must use a format the host understands. exFAT is common for large removable media; FAT32 has file-size limits; NTFS and vendor-specific formats may not mount on phones/tablets.
Write-protect reminder
A full-size SD card with its lock tab engaged may be readable but not writable. The reader cannot override the card's mechanical write-protect state.
Supported full-size SD and microSD/TF card families aligned with their slots
Simultaneous access and shared-resource behaviour
Supported pairs are SD1 + SD2 or SD1 + microSD/TF. SD2 + microSD/TF is not supported because those positions share operation.
Shared bandwidth
Two cards or attached peripherals divide the bandwidth available through the single host connection.
Shared power
Bus-powered readers and USB peripherals depend on host power. High-draw drives may disconnect or fail to mount without an appropriate powered path.
Copying card-to-card
The computer or mobile host mediates the copy. The reader is not an autonomous duplicator and does not copy files when disconnected from a host.
Safest workflow
For irreplaceable media, copy one card, verify the files, create a second backup and only then erase or reformat the original.
Compatible devices and systems
Compatible device class: USB-C laptops and desktops, USB-C iPhone and iPad models, and OTG-enabled USB-C Android phones or tablets.
Operating systems: Windows, macOS, Linux, ChromeOS, iOS/iPadOS and Android where USB mass-storage/OTG is supported..
Mobile rule: USB-C shape alone is insufficient; the mobile device must expose USB host/OTG storage and support the card file system.
USB-C is only a shape
A USB-C port can be charging-only, data-capable, OTG-capable or video-capable. Confirm the host function.
Apps and permissions
On phones/tablets, use Files, Photos or the manufacturer's supported file manager and allow removable-storage access when prompted.
Cases and clearance
A thick case can prevent full plug insertion. Remove it temporarily rather than forcing the connector.
Managed devices
Corporate policy, encrypted cards or restricted mobile profiles can block removable media even when hardware is compatible.
OTG mobile photo-transfer scenario; the phone must support USB host storage and the card file system
Use scenarios
Scenario 1
Import from two SD camera cards without swapping.
Scenario 2
Read SD1 and microSD footage together.
Scenario 3
Carry two spare SD and two spare microSD cards.
Scenario 4
Review travel or camera files on an OTG-enabled USB-C device.
CM868 dimensions and portable carry example for a camera or travel bag
Setup and usability guidance
Confirm SKU 55886, the required host connector and the card format before insertion.
If using a phone or tablet, enable or confirm OTG/USB-host storage and make sure the battery has enough charge.
Insert the memory card straight into its matching slot in the orientation shown by the slot label. Never force it.
Connect the reader to the host. Wait for the removable volume to appear in Files, Finder, File Explorer or the supported mobile app.
Copy a small test file first. Then start the main transfer and keep the device, cable and cards still.
Verify copied folders, file counts and several representative files before treating the transfer as a backup.
Use Eject or Unmount, wait for activity to finish, then disconnect by the connector housing rather than the cable.
Closed CM868 side view showing the integrated USB-C cable and labelled card-slot edge
What this product does
a USB-C reader with two active SD slots, one active microSD/TF slot and a magnetic compartment for four spare cards.
Provides Active: SD1, SD2 and microSD/TF. Passive storage: 2 × SD plus 2 × microSD under the magnetic cover..
Works within the documented speed and compatibility limits.
Supports the stated host and card families when the operating system can mount them.
What this product does not do
not a five-slot reader, not a waterproof backup case, not a UHS-II promise and not able to use SD2 with TF simultaneously.
It does not repair corrupted media, recover deleted files or guarantee that damaged cards will mount.
It does not make one copy into a backup; keep another copy on separate storage.
It does not guarantee every illustrated device, card capacity or speed without the required host capability.
What to do
Do: label cards
Separate blank, active and backed-up cards. Locking or labelling completed media prevents accidental erasure.
Do: verify before erasing
Open several copied files and compare counts or checksums for critical work.
Do: keep connectors clean
Use a dry, dust-free environment and store the reader where slot contacts are protected.
Do: eject safely
Unmount every active volume and wait for activity to stop before removal.
What not to do
Do not: remove during writing
Disconnecting during import, deletion, formatting or metadata updates can corrupt the file system.
Do not: force media
Wrong orientation or the wrong card family can bend contacts or crack the card.
Do not: format the wrong disk
Confirm the volume name, capacity and path before erase or format operations.
Do not: trust one copy
Portable cards fail, get lost and can be overwritten. Maintain a separate backup.
Warnings and limitations
Heat and moisture: keep the reader dry and ventilated. Mild warmth during sustained transfer can be normal; disconnect if there is unusual heat, smell, deformation or repeated resets.
Power: The storage recesses are not reader slots. The cover is magnetic, but the case is not advertised as waterproof, dustproof, crushproof or impact-certified.
Card handling: do not touch contacts, bend cards, use cracked adapters or insert nested adapters that do not fit cleanly.
Formatting: formatting deletes the file-system index and can make recovery difficult. Back up first and confirm the target device's preferred format.
Critical data: no reader can guarantee recovery from failing media. Stop repeated write attempts on a card showing errors and seek professional recovery help if the files are irreplaceable.
Technical specifications
Brand / SKU
UGREEN 55886
Product role
a USB-C reader with two active SD slots, one active microSD/TF slot and a magnetic compartment for four spare cards
Host connection
integrated USB-C cable; the host port must support USB data or OTG
Slots / ports
Active: SD1, SD2 and microSD/TF. Passive storage: 2 × SD plus 2 × microSD under the magnetic cover.
Simultaneous behaviour
Supported pairs are SD1 + SD2 or SD1 + microSD/TF. SD2 + microSD/TF is not supported because those positions share operation.
Interface ceiling
Up to 5Gbps USB interface bandwidth; the actual card pathway is advertised up to 170MB/s.
Card performance
Up to approximately 170MB/s with a suitable high-speed card and host. Simultaneous activity shares available bandwidth.
UHS/card mode
SD 3.0 / high-speed UHS-I-class workflow as shown in media; slot shape does not establish UHS-II operation.
Card formats
SD, SDHC, SDXC, microSD/TF, microSDHC and microSDXC.
Operating systems
Windows, macOS, Linux, ChromeOS, iOS/iPadOS and Android where USB mass-storage/OTG is supported.
Build
grey compact body, short integrated braided USB-C cable and magnetic storage cover
Reseat the card and reader, confirm slot orientation, test one card at a time, remove an obstructing case and check OTG/file-system support.
Card is read-only
Check the SD lock tab, operating-system permissions, card health and whether the file system was mounted read-only after errors.
Transfer is slower than expected
Use one card, a direct high-speed host port and large sequential files; confirm the card's own sustained rating and negotiated UHS mode.
Reader disconnects
Remove high-power USB peripherals, connect a suitable PD/powered path where this model supports it, and avoid loose extensions.
Phone cannot see files
Use the Files/Photos app, enable OTG, grant storage permission and verify the card uses a phone-supported format such as exFAT/FAT32.
Copied file will not open
Compare the original, copy again to a different destination and stop using a card that reports I/O, CRC or corruption errors.
Package contents
1 × UGREEN CM868 55886 reader/storage case; memory cards are not included
Memory cards, phone, tablet, computer, camera, charger, external drive and other illustrated accessories are not included unless explicitly named above or in the selected offer.
Magnetic-cover compartment arranged for two spare SD and two spare microSD cards
Product-specific FAQ
What exactly is UGREEN 55886?
a USB-C reader with two active SD slots, one active microSD/TF slot and a magnetic compartment for four spare cards.
Which host connection does it need?
integrated USB-C cable; the host port must support USB data or OTG.
Which card slots or ports are provided?
Active: SD1, SD2 and microSD/TF. Passive storage: 2 × SD plus 2 × microSD under the magnetic cover..
Can it access more than one card at a time?
Supported pairs are SD1 + SD2 or SD1 + microSD/TF. SD2 + microSD/TF is not supported because those positions share operation.
Is 5Gbps the actual card speed?
No. Up to 5Gbps USB interface bandwidth; the actual card pathway is advertised up to 170MB/s. Up to approximately 170MB/s with a suitable high-speed card and host. Simultaneous activity shares available bandwidth.
Does it support UHS-II speed?
SD 3.0 / high-speed UHS-I-class workflow as shown in media; slot shape does not establish UHS-II operation.
What card formats and capacities can I use?Will it work with a phone or tablet?
USB-C shape alone is insufficient; the mobile device must expose USB host/OTG storage and support the card file system.
Which file system should I use?
Use a format supported by both the host and destination device. exFAT is common for large removable media; FAT32 has a 4GB single-file limit; NTFS often fails on phones/tablets.
How should I remove a card safely?
Finish every transfer, close apps using the volume, choose Eject or Unmount, wait for activity to stop, then remove the card and reader without pulling the cable.
What is included in the package?
1 × UGREEN CM868 55886 reader/storage case; memory cards are not included.
Final model check
Confirm SKU 55886, integrated USB-C cable; the host port must support USB data or OTG, and Active: SD1, SD2 and microSD/TF. Passive storage: 2 × SD plus 2 × microSD under the magnetic cover.. Then match the UHS mode, capacity, simultaneous-access rule and mobile/charging requirements before ordering.
