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Expander E1

Ultra-high capacity external hard drive HDD to store lossless music data, noise-reduction and anti-vibration techniques and with USB3.0 connector to be compatible with most Hi-Fi audio devices.


" easily expand your lossless music storage  "


- Designed for Lossless Music Storage 

An ideal solution for large music data storage, it's a silent and solid fortress devotedly built for audio utilization. 

Despite the SSD holds good sound performance, but the price can be overwhelming sometimes, especially when the lossless digital music file requires large storage space, E1 has 2 versions, 8TB and 10TB, which allow users to migrate their lossless music files from NAS to E1 smoothly.

E1 both has high capacity and noise-reduction design for Hi-Fi audio application, you won't have to worry about pricey SSD anymore. 


- Silent Angel Noise Reduction Expertise

As tailored for Rhein Z1(music server) and Munich Series(music streamer), E1 is dedicated to serve Hi-Fi music enjoyment with its powerful noise-reduction & anti-vibration techniques.

Anti-vibration technique, which makes the mechanical vibration lower than 26dB-A, even under fast-speed operation, with inner anti-interference design, which makes it highly stable during high-frequency signal transmission, and powered by a separate adaptor, which makes the music data transmission through USB3.0 interface low-interference and won't get disturbed by the power signal, silent yet reliable, the solid fortress for your precious music data.

- Specially Made Data Circuit

Exclusive Data Transmission Path

- The inner circuit is specially made for music data storage and transmission, it wouldn't get impacted by power signal, because E1 owns a separate power adaptor to provide power source, which makes the lossless music  data transmission more stable and anti-interference. 

- Strong Anti-vibration Enclosure

Substantial Material Shell

- Facing the high-frequency networked audio system setup, even the tiniest vibration can cause interference, adopting 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.


- Anti-vibration Constructure

A silent yet solid fortress for your lossless music data.


Adopting specialized gaskets around the anti-vibration HDD holder, to effectively reduce the machine noise when working under high-frequency Hi-Fi audio setup.


- Hi-Fi Music Source

Tailored for Rhein Z1, high-performance server.


E1 possesses USB3.0 interface, a perfect match for Z1, which makes data transmission path far more anti-interference, Z1 can process the lossless music data optimally from E1.


- Upgrade Hi-Fi Audio Source 

Get powered by Forester F2, liner power supply.

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

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- Product Specifications -


(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 Specifications -


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




⤓ Product Specification

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