OT-H14:
1) 4-port USB hub with aluminum cover
2) USB2.0 compliant
3) USB bus powered, no external power adapter
4) Supports Win 95 OSR2 / 98 / 98SE / ME / 2000 / XP, Linux / Mac OS
5) Dimensions: 58 x 47 x 11mm
6) Color: black, golden, blue, argent

OT-H20:
1) 4-port USB hub with aluminum cover
2) USB2.0 compliant
3) USB bus powered, no external power adapter
4) Supports Win 95 OSR2 / 98 / 98SE / ME / 2000 / XP, Linux / Mac OS
5) Dimensions: 95 x 42 x 15mm

OT-H21:
1) 4-port USB hub with aluminum cover
2) Full compliant with the universal serial bus specification version1.1/2.0, full speed
up to 480Mbps
3) USB bus powered, no external power adapter
4) Single chip integrated USB hub controller with embedded proprietary processor
5) Supports Win 95 OSR2 / 98 / 98SE / ME / 2000 / XP, Linux / Mac OS
6) Dimensions: 83 x 38 x 10mm
7) Designed with super streamline and mini size with color LED show

OT-H22:
1) 4-port USB hub with aluminum cover
2) Full compliant with the Universal Serial Bus Specification version1.1/2.0,full speed
up to 480Mbps
3) USB bus powered, no external power adapter
4) Single chip integrated USB hub controller with embedded proprietary processor
5) Supports Win 95 OSR2 / 98 / 98SE / ME / 2000 / XP, Linux / Mac OS
6) Dimensions: 44 x 44 x 10mm
7) Designed with super streamline and mini size