ODROID-XU4 is a new generation of computing device with more powerful, more energy-efficient hardware and a smaller form factor.
Offering open source support, the board can run various flavors of Linux, including the latest Ubuntu 16.04 and Android 4.4 KitKat, 5.0 Lollipop and 7.1 Nougat.
By implementing the eMMC 5.0, USB 3.0 and Gigabit Ethernet interfaces, the ODROID-XU4 boasts amazing data transfer speeds, a feature that is increasingly required to support advanced processing power on ARM devices.
This allows users to truly experience an upgrade in computing, especially with faster booting, web browsing, networking, and 3D games.

– ODROID-XU4 Board
– Active cooling fan / Passive cooler(XU4Q) mounted

** 5V/4A Power Supply is sold separately from19th of February 2017.

A MicroSD card or an eMMC module is required to boot the OS. We strongly recommend an eMMC module for faster OS booting, quicker application launching, seamless multi-tasking and efficient access to the cloud.

SD/eMMC PERFORMANCE

The XU4 can boot from a MicroSD card or an eMMC module. An easy-access hardware switch is provided to select the boot interface (MicroSD/eMMC). The MicroSD interface supports the higher performance UHS-1 mode as well.
File access of a 512MB file (read/write) on three different storage options shows distinct performance differences.
The eMMC 5.0 storage is ~7x faster than the MicroSD Class-10 card in read tests. The MicroSD UHS-1 card is ~2x faster than the MicroSD Class-10 card in read tests. The MicroSD UHS-1 card provides a great low-cost option for many applications!

Write command dd if=/dev/zero of=test oflag=direct bs=8M count=64Read command  dd if=test of=/dev/null iflag=direct bs=8M Following eMMC 5.0 test was done with 16GB model. 8GB model is slower than 16GB. SD-class10 SD-UHS1 eMMC 5.0 Write speed (MB/s) 8.5 10.8 39.3 Read speed (MB/s) 18.9 35.9 140

USB 3.0 PERFORMANCE

The XU4 has two standard-sized USB 3.0 SuperSpeed host ports. To measure the USB 3.0 performance, we connected an SSD via a USB-SATA bridge JMS567. We used the Samsung SSD 850 PRO 256GB model for this test.USB 3.0 access speed is ~10x faster than USB 2.0 on the XU4! USB storage performance Read SSD(MB/sec) Write SSD(MB/sec) USB2.0 HighSpeed 27.6 26.2 USB3.0 SuperSpeed 273 258

ETHERNET PERFORMANCE

The XU4 has an on-board Gigabit Ethernet controller. Our bi-directional streaming speed was measured at ~910 Mbps.
Thanks to the advanced technology of the RTL8153 controller, the XU4’s Ethernet controller easily outperforms the connectivity solutions of prior generations.

These days, network storage applications like NAS and cloud services are popular. We ran the famous OMV (Open Media Vault) OS on the XU4 to measure network storage performance.
Very affordable Seagate external 8TB HDD was connected to the XU4 via a USB 3.0 port. The Gigabit Ethernet port was connected to a Windows 10 PC via a simple switching hub.

We copied a big 8GB file from the XU4 to the PC via a Samba connection.
This resulted in a download speed of ~110MB/sec.  The upload speed was measured at ~95MB/sec. 
The transfer speed is very close to the high-end commercial NAS product in the market.

The XU4 is a great solution to make a DIY personal Network Storage Server!

Download speed : ~110 MB/s	Upload speed : ~95 MB/s

Heterogeneous Multi-Processing (HMP) solution

The ODROID-XU4, equipped with four big cores (ARM® Cortex® -A15™ up to 2.0GHz) and four small cores (ARM® Cortex® -A7™ up to 1.4 GHz), provides improved processing capabilities while maintaining the most efficient power consumption available. With the big.LITTLE™ HMP solution, the Exynos-5422 can utilize a maximum of all eight cores to manage computationally intensive tasks.

The ARM® Mali™-T628 MP6 GPU offers key API support for OpenGL ES 1.1, OpenGL ES 2.0 and OpenGL ES 3.0, OpenCL 1.2 Full Profile and Google RenderScript. Mali-T628 is the GPU of choice for use in the next generation of market-leading devices, optimized to bring breathtaking graphical displays to consumer applications such as 3D graphics, visual computing, augmented reality, procedural texture generation and voice recognition. You can download the full featured OpenGL ES and OpenCL SDK from ARM Mali Developer website. It’s free!

This screen-shot shows OpenGL-ES applications and the Kodi media player with Ubuntu Mate desktop on the HMP enabled Kernel.