Handmade Wooden BLUE Double Pentode Radio Tubes 4 ports USB 2.0 HUB with vintage Ussr quality sign. Industrial/Fallout style Radio vacuum tube was made in USSR in 1981. Dimensions: 100mm x 50mm x 75mm (4" x 2'' x 3''). Supported Standard: USB 1.0, USB 1.1, USB 2.0 Work with : Win2000, WinXP, Vista, Windows 7, Windows 8, Mac OS, Linux. Made in Latvia(EU). Shipping to US: 10-15 days.