Those customers who have experience using the tX-USB and tX-USBexp, which are USB host cards, would have known the fact as to how much the quality of a USB port affects the audio sound.

 The tX-USBhub, when connected to devices, such as the Note PC, Mac mini, or  NUC board, provided with no PCI or PCI express slot, may substitute for the functions of the tX-USB or tX-USBexp products.

 The functions of tX-USBhub could be simply described as a USB 2.0 hub, but they can be described further in detail as an “Audio USB 2.0 Hub” designed and developed solely to achieve high quality for USB audio devices employing the technologies used in the tX-USB and tX-USBexp, which provides the excellent sound quality unequaled and incomparable to other conventional USB hubs.

– Ultra Low Noise Regulator : Extremely low noise power supply circuit, designed considering the noises generated from the power supply circuit itself.

– Ultra Low Jitter Clock : Super-precision clock circuit improving the sound quality by reducing the jitter in the audible band most sensitive to people.

– Active Noise Canceller : Stabilizes the clock frequency vibration caused by the voltage variations and noise, so it produces the best sound quality.

– 2nd stage power regulator for highest sound quality.

– USB port power on/off switch for highest sound quality.

– USB port signal noise filter for highest sound quality.

– High performance capacitor for improved sound quality.

– USB port power over current & thermal protection for safe operation.

 It is possible to connect USB audio devices and external storage devices simultaneously through the two USB ports built in the product, and allow selection of products fitting to the operating condition out of the embedded type tX-USBhubIN for installation inside of PC enclosure or the external tX-USBhubEX for standalone operation.

 Also, if the tX-USBhub is used together with a premium quality power supply like sPS-500 and a USB cable like dCBL-UF, you get the better sound quality from your USB audio system.

Do try and experience the high quality sound system produced by the new idea and technology with tX-USBhub beyond the existing PC product criteria.

Key Features

  • 2 ports USB hub
  • USB power ON/OFF switch
  • External power input
  • For the best USB audio performance



Audio Video Revolution

HD Fever


USB host interface
  3 pins internal USB signal connector
  Connecting to the computer main board USB header by an internal USB cable
USB output Ports
  Type A USB 2.0 connector x 2
  USB power on/off switch
USB interface chip set
  USB 2.0 Compliant HUB controller
  HS(480 Mbps), FS(12 Mbps), LS(1.5 Mbps) support
Internal power input
  Input voltage : +12.0V(+0.5V, -0.5V)
  Input current : 2A max
  15pin SATA power connector
External power input
  Automatic external power selection
  Input voltage : +6.5V ~ +9Vdc
  Input current : 2A max
  5.5mm OD, 2.1mm ID adaptor jack
USB port output power
  Output voltage : +5.0V(+0.5V, -0.25V)
  Over current protection : 0.8A at 20°C
  Recommend output current : 0.5A >
Operating environment
  Operating temperature : +10 ~ +30℃
  Storage temperature : 0 ~ +40℃
  Operating & storage humidity : 10% ~ 90%


Recommend using 1 USB port. If you use both USB ports at the same time, it will degrade sound quality.

 The tX-USBexp and tX-USBhub’s basic concept and technique are the same ;

  Ultra Low Noise Regulator,

  Ultra Low jitter clock,

  Active Noise canceler,

  Multi stage regulator

  and also others are applied into both tX-USBhub and tX-USBexp.

 The main components used on the tX-USBhub are also the same as tX-USBexp, so their sound character and design are like a twins.

 But the main difference is that tX-USBhub is not an USB host card as like tX-USBexp is, the tX-USBhub is USB 2.0 hub , so it has 2 USB ports.

 Also tX-USBhub has more benefits than the tX-USBexp since the connection to mainboard is made by USB connector only.

 Both tX-USBexp and tX-USBhub could work with external power, and as this fact, everyone knows the good power supply such as mBPS-d2s or sPS-1000 improves sound a lot. As for the external version(tX-USBhubEX), it should work with the external power all the time so it has big merits to take good sound quality with NUC board, Note PC(Laptop), Mac or etc..

 But please consider that even though both tX-USBexp and tX-USBhub have the same techniques, concept and sound character, after all the result comes out differently depending on various circumstances as like M/B, power supply, memory, CPU, HDD, SSD…. so it can not be judged simply which one is the better one, but you can consider building the super clock(sCLK or sCLK-EX) with tX-USB series board, their combination is amazing.