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Expander E1

The ultra-high capacity external HDD with noise-reduction techniques to store lossless music.

When it comes to sensitive Hi-Fi system, the performance of music storage can be important, being anti-vibration and only dedicated to store lossless music data, as a solid music fortress. 

E1 is to easily expand your music storage with Hi-Fi grade noise-reduction techniques.


Designed for Lossless Music Storage 

An ideal solution for large music data storage, it's a music fortress devotedly built for Hi-Fi audio utilization. 


E1 has 2 versions, 8TB and 10TB, with ultra-high capacity to allow user to migrate their lossless music files from NAS to E1 easily.

Adopting USB 3.0 interface, which makes it highly compatible with most hi-end audio devices, such as Rhein Z1, high-performance music server, it'd be a dedicated " 10TB Hi-Fi audio NAS ".

Noise-reduction & Anti-vibration Techniques 

Placing specialized gaskets around the anti-vibration HDD holder to effectively reduce the machine noise when working under high-frequency environment, it's lower than 26dB-A.

Robust enclosure built with thick aluminum alloy for all panels, even the stands on the bottom case, all the designs are meant to reduce any possible machine vibrations & noises.

Exclusive data rails for lossless music, it won't get impacted by power signal, as E1 is powered by separate power adaptor, which means USB 3.0 interface is dedicated for data transmission. it's more stable and anti-interference. 


Designed for Hi-Fi Storage

E1 is to easily expand your music storage with Hi-Fi grade noise-reduction techniques.

Highly compatible USB 3.0 can work with Z1; DC input can connect to F2 to further upgrade power performance.


Cooperate with other devices, it can build up an exclusive HI-Fi music playing system.

Get powered Forester F2, and work with Bonn N8, and Munich M1 simultaneously, the pure and stable power signal would serve the greatly smooth data transmission between all these Hi-Fi audio devices, from music storage to network optimization, and music streaming, every step is protected by the optimized power signal, it's time to enjoy a supreme Hi-Fi feast at home.


As Tailored for Rhein Z1, high-performance music server.


E1 employs USB 3.0 interface, which is a perfect match for Z1, it makes the data transmission path far more anti-interference, so Z1 can process the lossless music data optimally from E1.

A dedicated 10TB Hi-Fi Audio NAS.


Further Upgrading power for the Hi-Fi Audio NAS.

Forester F2 is able to simultaneously support E1 and Z1, with its optimized power signal to support E1 and Z1's data processing, more stable and pure, Hi-Fi sound enjoyment is easy to obtain by this great source system.

By adopting a 10TB E1 with Z1 to build up to Hi-Fi NAS to run as Roon Core, the sound quality is exceptional.

Product Specification



(DC) 12V/1 A at max

12W at max

USB3.0 Type-B female connector

Power Status*1 

- Blue light means power on and the condition is stable

- Two-color light (Blue static; Red flashes) means it's functioning as a storage to read or write

- No light means no power input

Operating 0 ~ 35 °C; Storage -20 ~ 70 °C

Operating: 10% ~ 90% RH (non-condensing)

Storage: 5% ~ 95% RH (non-condensing)

200 x 200 x 76 mm (with foot stands)

2.5 KG

Power Use: 


LED Indicator: 




Power Input: 



Package Specification


Power Adaptor*1

Power Cord*1 

USB3.0 Type-A to USB 3.0 Type-B Cable *1

Quick Start Guide*1

Warranty Card*1

280 x 280 x 175 mm

3.5 KG




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