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header-product Ugreen CM304 Card Reader USB 3.0 Type-A/Type-C Black supporting SD and MicroSD memory cards with 5000 Mbit/s data transfer rate
10.49 €

Ugreen CM304 Card Reader USB 3.0 Type-A/Type-C Black supporting SD and MicroSD memory cards with 5000 Mbit/s data transfer rate

Ugreen CM304 Card Reader USB 3.0 Type-A/Type-C Black Photo 1
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Ugreen CM304 Card Reader USB 3.0 Type-A/Type-C Black supporting SD and MicroSD memory cards with 5000 Mbit/s data transfer rate

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Ugreen CM304 Card Reader USB 3.0 Type-A/Type-C Black supporting SD and MicroSD memory cards with 5000 Mbit/s data transfer rate

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Short description

Ugreen CM304 external card reader in black features USB 3.0 Type-A and Type-C interfaces, delivering high-speed data transfer rates up to 5000 Mbit/s. Designed for connecting SD and MicroSD TransFlash memory cards to computers and mobile devices. Ideal for photographers and professionals needing fast file access, efficient data management, and reliable multimedia transfers.
Available for order: 18 pcs.
Warranty: 2 Years
SKU: 10495270
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

{{selectedOffer.parcelStationDeliveryString}}

Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
23.09.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
28.09.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.05 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
28.09.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The Ugreen CM304 Card Reader USB 3.0 Type-A/Type-C Black supporting SD and MicroSD memory cards with 5000 Mbit/s data transfer rate is a versatile and efficient external memory card reader designed for seamless file management across computers and mobile devices. Featuring dual USB 3.0 Type-A and Type-C interfaces, this device bridges the gap between traditional hardware and modern USB-C enabled electronics. Built from durable acrylonitrile butadiene styrene, it offers a lightweight and portable housing equipped with protective caps to guard against dust during travel.

Advantages

This external card reader features an advanced internal chip that enables high-speed data transmission rates up to 5000 Mbit/s, significantly reducing waiting times when transferring large media files. It includes two built-in slots allowing the simultaneous reading and writing of both SD and MicroSD memory cards, supporting high-capacity storage media up to 2TB. The dual connector design incorporates both USB-A and USB-C plugs, ensuring broad system compatibility without the need for additional adapters.

Suitable for

  • Transferring high-resolution photos and videos from camera memory cards to a laptop
  • Managing files on smartphones and tablets supporting OTG functionality
  • Expanding connectivity options between legacy computers and modern mobile devices
  • Working with large media libraries on Windows, Mac OS, and Linux operating systems

When it may not be suitable

This device is not designed for reading memory card formats other than SD and MicroSD, such as CompactFlash or Memory Stick. It also does not function as an internal component, as it is strictly built for external connectivity via USB ports.

Key specifications

  • Compatible memory cards: SD, MicroSD (TransFlash)
  • Number of memory card slots: 2
  • Maximum data transfer rate: 5000 Mbit/s
  • Maximum supported card capacity: Up to 2TB
  • Interface: USB 3.0 Type-A and Type-C
  • Housing material: Acrylonitrile butadiene styrene (ABS)
  • Color: Black

How to use

To use the Ugreen CM304 card reader, select either the USB-A or USB-C connector depending on the host device and plug it into an available port on your computer, tablet, or smartphone. Insert an SD or MicroSD memory card into the corresponding slot until it clicks gently into place. The operating system will automatically recognize the storage medium, allowing you to access, transfer, or manage your files. Once finished, safely eject the drive from your operating system before removing the card.

What to consider before purchase

  • Verify that your host device features a standard USB-A or USB-C port with OTG support if connecting to a mobile device
  • Check that your memory cards fall within the supported SD or MicroSD formats and do not exceed the 2TB capacity limit
  • Consider whether you require simultaneous access to two cards, as this reader provides dual slots for that exact purpose

Always safely eject or unmount the memory card reader through your operating system settings before physically disconnecting the device to prevent potential data corruption.

Specifications

Interface: Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
USB 3.0 Type-A/Type-C
Internal: The product is built in.
No
All features

Design

Housing material: What the casing of the product is made of.
Acrylonitrile butadiene styrene (ABS)
Product colour: The colour e.g. red, blue, green, black, white.
Black

Features

Compatible memory cards: Types of memory cards which can be used with this product.
SD, MicroSD (TransFlash)

Packaging data

Quantity per pack:
1 pc(s)

Ports & interfaces

USB 3.2 Gen 1 (3.1 Gen 1) ports quantity: The number of USB 3.0 ports (sockets). USB 3.0 was released in November 2008. The standard defines a new SuperSpeed mode with a signaling speed of 5 Gbit/s and a usable data rate of up to 4 Gbit/s. A USB 3.0 port is usually colored blue, and is backwards compatible with USB 2.0.
2
Interface: Interface ports to connect pieces of equipment. USB (Universal Serial Bus) has become the most popular wired interface to connect peripherals. USB 2.0 supports speeds up to 480 Mbit/s (USB 1: 12 Mbit/s). The interface FireWire is also known as the IEEE 1394 standard. Enhanced IDE (EIDE)is sometimes referred to as Fast ATA, Fast IDE or ATA-2.
USB 3.0 Type-A/Type-C

Performance

Data transfer rate: Rate at which data can be transferred, usually measured in units per second. May vary with network configurations.
5000 Mbit/s
Number of memory card slots:
2
Internal: The product is built in.
No

Description

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Customer reviews

Customer questions

FAQ

How much does the Ugreen CM304 Card Reader USB 3.0 Type-A/Type-C Black cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.09.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All UGREEN products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized UGREEN service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: interface, internal, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.