Introduction
DB-35U2H4 is a 3.5" Floppy Drive Form Factor four downstream ports USB 2.0 HUB featuring Cypress CY7C65640 TetraHubTM High Speed USB Hub Controller.

DB-35U2H4 is a high-performance Universal Serial Bus (USB) 2.0 Hub. The Tetra architecture provides four downstream USB ports, with a Transaction Translator (TT) for each port, making it the highest performance hub possible.

DB-35U2H4 works backward compatible either when any one of downstream ports are connected to an USB 1.1 compliant device, or when the upstream port is connected to a USB 1.1 compliant host.
Product Profile
  • Compliant with USB 2.0(Data Rate 1.5/12/480Mbps)
  • 4 (max.) downstream facing ports
  • Multiple transaction translators
    • One per downstream port for maximum performance
  • All downstream facing ports can handle high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) transaction.
  • Supports self-powered mode only
  • Supports Over-current detection and Individual / Gang power control
  • Supports configurable vendor ID and product ID with external Serial ROM
  • Supports on-removable?attribution on individual port
Technical Specifications
  • Power Input: Mini 4-pin Floppy drive like power connector (max. DC +5V/2.5A)
  • Physical Dimensions: 3.5" FDD Form Factor 3.5" x 2.64" (8.90cm x 6.70cm)
  • Fit to most standard 3.5" FDD Dock Space