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Ugreen  |  SKU: 55899
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UGREEN 55899 USB-C/USB-A 3-Slot Card Reader with 11-Card Case

Rs. 3,700.00 Rs. 5,189.00
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3 READER SLOTS • STORES 11 CARDS • USB-C/USB-A

UGREEN 55899 USB-C/USB-A 3-Slot Card Reader with 11-Card Case

Overview

UGREEN 55899 is a three-slot card reader built into a travel organizer for six SD cards, four microSD cards and one SIM. This exact-model guide separates connector bandwidth from real card performance and explains every important compatibility boundary before you move valuable files.

SKU 55899Active: SD1, SD2 and microSD/TF. Passive storage: 6 × SD, 4 × microSD/TF and 1 × SIM, plus ejector pin space.No exact sustained MB/s card figure is established by the current live gallery. Actual rate depends on card, host, file system and whether two cards are active.
UGREEN 55899 Three-slot USB-C/USB-A reader case opened with active and stored cards — exact SKU 55899
Three-slot USB-C/USB-A reader case opened with active and stored cards — exact SKU 55899

Key features

Reader role

a three-slot card reader built into a travel organizer for six SD cards, four microSD cards and one SIM.

Host connection

integrated USB-C cable plus supplied USB-C-to-USB-A adapter; use one host connection at a time.

Card layout

Active: SD1, SD2 and microSD/TF. Passive storage: 6 × SD, 4 × microSD/TF and 1 × SIM, plus ejector pin space..

Practical speed

No exact sustained MB/s card figure is established by the current live gallery. Actual rate depends on card, host, file system and whether two cards are active.

Model check: Similar-looking UGREEN readers can differ in host plug, card protocol, simultaneous access, extra USB ports and charging. Match SKU 55899 rather than buying by appearance alone.

Ports, slots and connection map

Host side: integrated USB-C cable plus supplied USB-C-to-USB-A adapter; use one host connection at a time.

Reader and accessory side: Active: SD1, SD2 and microSD/TF. Passive storage: 6 × SD, 4 × microSD/TF and 1 × SIM, plus ejector pin space..

Extra function: The storage case organizes cards but is not described as waterproof, fireproof or crushproof. The USB-A adapter and card-eject pin have dedicated storage positions.

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.

Speed explained without the marketing blur

USB/interface ceiling

Up to 5Gbps USB interface bandwidth, shared by active cards.

Memory-card ceiling

No exact sustained MB/s card figure is established by the current live gallery. Actual rate depends on card, host, file system and whether two cards are active.

UHS generation

Do not infer UHS-II speed from slot shape or the 5Gbps USB interface. The exact live gallery does not establish a UHS-II performance ceiling.

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.

UGREEN 55899 5Gbps shared USB-interface artwork; no unsupported sustained card-rate claim is inferred
5Gbps shared USB-interface artwork; no unsupported sustained card-rate claim is inferred

Card formats, capacity and file systems

Supported card families

SD, SDHC, SDXC; microSD/TF, microSDHC and microSDXC.

Capacity boundary

The current exact live gallery does not state a maximum card capacity. Large-card use depends on the reader firmware, card type, host OS and file system; verify unusually large media before relying on it.

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.

UGREEN 55899 Passive organization layout for six SD, four microSD, one SIM, adapter and ejector pin
Passive organization layout for six SD, four microSD, one SIM, adapter and ejector pin

Simultaneous access and shared-resource behaviour

Supported pairs are SD1 + SD2 or SD1 + microSD/TF. SD2 + microSD/TF is not supported.

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.

UGREEN 55899 Supported two-card pairs: SD1 plus SD2, or SD1 plus microSD/TF
Supported two-card pairs: SD1 plus SD2, or SD1 plus microSD/TF

Compatible devices and systems

Compatible device class: USB-C laptops/tablets/phones and USB-A computers with compatible USB storage support.

Operating systems: Windows, macOS, Linux and compatible USB-C/USB-A hosts; mobile use requires OTG..

Mobile rule: A phone or tablet must support OTG/USB host storage and 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 exact 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.

UGREEN 55899 One-at-a-time USB-C or supplied USB-A-adapter host connection
One-at-a-time USB-C or supplied USB-A-adapter host connection

Use scenarios

Scenario 1

Organize fresh and used camera cards on location.

Scenario 2

Read two SD cards together.

Scenario 3

Read SD1 and microSD media together.

Scenario 4

Travel with six SD, four microSD and one SIM.

UGREEN 55899 Before-and-after location workflow organizing loose cards inside the protective case
Before-and-after location workflow organizing loose cards inside the protective case

Setup and usability guidance

  1. Confirm SKU 55899, the required host connector and the exact card format before insertion.
  2. If using a phone or tablet, enable or confirm OTG/USB-host storage and make sure the battery has enough charge.
  3. Insert the memory card straight into its matching slot in the orientation shown by the slot label. Never force it.
  4. Connect the reader to the host. Wait for the removable volume to appear in Files, Finder, File Explorer or the supported mobile app.
  5. Copy a small test file first. Then start the main transfer and keep the device, cable and cards still.
  6. Verify copied folders, file counts and several representative files before treating the transfer as a backup.
  7. Use Eject or Unmount, wait for activity to finish, then disconnect by the connector housing rather than the cable.
UGREEN 55899 Exact dimensions, woven cable and aluminium-shell construction for travel preparation
Exact dimensions, woven cable and aluminium-shell construction for travel preparation

What this product does

  • a three-slot card reader built into a travel organizer for six SD cards, four microSD cards and one SIM.
  • Provides Active: SD1, SD2 and microSD/TF. Passive storage: 6 × SD, 4 × microSD/TF and 1 × SIM, plus ejector pin space..
  • 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 able to use SD2 + TF together, not a waterproof archival case, not a charger, not guaranteed UHS-II and not a substitute for independent backups.
  • 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 verified 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 verified 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 case organizes cards but is not described as waterproof, fireproof or crushproof. The USB-A adapter and card-eject pin have dedicated storage positions.

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.

UGREEN 55899 Exact restriction: SD2 and microSD/TF cannot operate together despite both slots being present
Exact restriction: SD2 and microSD/TF cannot operate together despite both slots being present

Technical specifications

Brand / SKU UGREEN 55899
Product role a three-slot card reader built into a travel organizer for six SD cards, four microSD cards and one SIM
Host connection integrated USB-C cable plus supplied USB-C-to-USB-A adapter; use one host connection at a time
Slots / ports Active: SD1, SD2 and microSD/TF. Passive storage: 6 × SD, 4 × microSD/TF and 1 × SIM, plus ejector pin space.
Simultaneous behaviour Supported pairs are SD1 + SD2 or SD1 + microSD/TF. SD2 + microSD/TF is not supported.
Interface ceiling Up to 5Gbps USB interface bandwidth, shared by active cards.
Card performance No exact sustained MB/s card figure is established by the current live gallery. Actual rate depends on card, host, file system and whether two cards are active.
UHS/card mode Do not infer UHS-II speed from slot shape or the 5Gbps USB interface. The exact live gallery does not establish a UHS-II performance ceiling.
Card formats SD, SDHC, SDXC; microSD/TF, microSDHC and microSDXC.
Capacity/file-system note The current exact live gallery does not state a maximum card capacity. Large-card use depends on the reader firmware, card type, host OS and file system; verify unusually large media before relying on it.
Operating systems Windows, macOS, Linux and compatible USB-C/USB-A hosts; mobile use requires OTG.
Build aluminium shell, woven USB cable and sliding protective storage cover
Approx. dimensions Approx. 124.3 × 57.4 × 25.7mm in exact live artwork
SKU 55899
Host interfaces USB-C; USB-A through supplied adapter
USB ceiling Up to 5Gbps
Active slots 2 × SD; 1 × microSD/TF
Supported simultaneous pairs SD1 + SD2; SD1 + TF
Unsupported pair SD2 + TF
Passive storage 6 × SD; 4 × microSD; 1 × SIM
Approx. size 124.3 × 57.4 × 25.7mm
Card-speed/capacity maxima Not established by exact live gallery

Troubleshooting

Card does not appear

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 exact 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 55899 reader/storage case, 1 × USB-C-to-USB-A adapter, 1 × card/SIM ejector pin

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.

Research and media reconciliation

The exact gallery resolves the card-pair restriction, dimensions, materials and included adapter/pin. Copy removes the current page's unqualified speed language and does not borrow 4TB or UHS-II claims from inconsistent third-party listings.

Visual-media decision: All eight exact images are used once. The visuals distinguish 11 passive storage positions from three active reader slots and place the SD2-plus-TF restriction beside the simultaneous-use guidance.

Research method: exact live Shopify product record and gallery were visually reviewed, then claims were checked against exact-SKU UGREEN India or official UGREEN regional pages. Duplicate, corrupted or conflicting artwork was documented and not embedded.

Source discipline: no UHS-II, capacity, speed, simultaneous-access or charging claim was inferred from slot shape, connector colour or a related product family.

Product-specific FAQ

What exactly is UGREEN 55899?

a three-slot card reader built into a travel organizer for six SD cards, four microSD cards and one SIM.

Which host connection does it need?

integrated USB-C cable plus supplied USB-C-to-USB-A adapter; use one host connection at a time.

Which card slots or ports are provided?

Active: SD1, SD2 and microSD/TF. Passive storage: 6 × SD, 4 × microSD/TF and 1 × SIM, plus ejector pin space..

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.

Is 5Gbps the actual card speed?

No. Up to 5Gbps USB interface bandwidth, shared by active cards. No exact sustained MB/s card figure is established by the current live gallery. Actual rate depends on card, host, file system and whether two cards are active.

Does it support UHS-II speed?

Do not infer UHS-II speed from slot shape or the 5Gbps USB interface. The exact live gallery does not establish a UHS-II performance ceiling.

What card formats and capacities can I use?

SD, SDHC, SDXC; microSD/TF, microSDHC and microSDXC. The current exact live gallery does not state a maximum card capacity. Large-card use depends on the reader firmware, card type, host OS and file system; verify unusually large media before relying on it.

Will it work with a phone or tablet?

A phone or tablet must support OTG/USB host storage and 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 55899 reader/storage case, 1 × USB-C-to-USB-A adapter, 1 × card/SIM ejector pin.

Final exact-model check

Confirm SKU 55899, integrated USB-C cable plus supplied USB-C-to-USB-A adapter; use one host connection at a time, and Active: SD1, SD2 and microSD/TF. Passive storage: 6 × SD, 4 × microSD/TF and 1 × SIM, plus ejector pin space.. Then match the UHS mode, capacity, simultaneous-access rule and mobile/charging requirements before ordering.

SKU 55899Do not infer UHS-II speed from slot shape or the 5Gbps USB interface. The exact live gallery does not establish a UHS-II performance ceiling.The current exact live gallery does not state a maximum card capacity. Large-card use depends on the reader firmware, card type, host OS and file system; verify unusually large media before relying on it.

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