For UDMA CompactFlash
and SD UHS-I (SD 3.0) cards
The highest speed offering in the Lexar
Professional USB 3.0 Dual-Slot Reader is an excellent solution for professional
photographers and videographers looking to maximize their workflow with
blazing-fast transfer speeds. Features include:
• SuperSpeed USB 3.0 interface speed up
to 500MB/s* (transfers up to 5 times
faster than USB 2.0*)
• Supports the latest UDMA
**, and SD
• Backwards compatible with standard
CF, SD, and SDHC cards, as well as
USB 2.0 devices
• Enables concurrent and card-to-card
• A sleek, compact design for the
• Innovative, pop-up mechanism designed
to protect card slots when not in use
• LED activity light lets you know when
transfer is complete
*Results may vary based on system configuration
and card speed.
**Not supported on all operating system platforms.
Professional reader line, the Lexar
• Lexar Professional USB 3.0
• USB 3.0 Cable
• USB 3.0 port
Operating System Requirements
• Mac OS 10+
A Quick Look at the Reader
SD Card slot
Connecting the Reader
This section describes how to connect the
Lexar Professional USB 3.0 Dual-Slot Reader.
To connect the reader to your computer:
1. Plug the USB cable into the port on the
back of the reader.
2. Plug the other end of the USB cable into
an available USB port on your computer.
To open the reader:
1. Hold the reader in the palm of your
hand with the reader facing forward,
with your thumb and middle finger
pressing the side buttons, while securing
the reader with your index finger in
2. As it is positioned in your hand as
described in the previous step, gently
squeeze the side buttons, allowing the
reader to pop open
to expose the
To Insert Cards:
• Place the reader on a flat surface and
hold the front and back of the reader
with your thumb and index fingers.
Then, with your free hand, insert you
SD, SDHC, SDXC, CF, or UDMA CF
USB 3.0 port
card into the appropriate slot.
To Remove Cards:
• After the LED activity light stops blinking,
it is safe to remove the card. Place your
hands back onto the reader as previously
described to open the reader. To remove
the inserted card, eject the card in the
same manner you would eject a disk
drive from your computer.
WARNING: Do not remove the card from
the reader when the LED activity light is
on or blinking or you may lose data or
damage the card. You should follow the
steps listed above to safely eject
the card from the reader.
LED Activity Light
The reader's LED activity light was
specifically designed to safeguard the files
stored on your memory card, prevent
interrupted file transfers, and reduce the risk
of data loss or card damage. The light acts
as a status indicator to help ensure proper
use of the reader.
LED off: The reader
is plugged into the
computer but does not
have a card inserted.
LED on: The reader is
plugged into the computer
and has recognized that a memory card has
been inserted. This also means that no
data is being transferred.
LED blinks twice on initial card insertion:
The reader has detected the memory card.
LED blinks continuously: The reader is
transferring data between the memory