OT-R08:
1) Compatible with USB2.0 / 1.1 standard
2) Supports SD, MMC, and RS-MMC cards
3) Plug and play and hot swapping
4) Easy recognition
5) USB bus-powered, no external power supply required
6) Supported OS: Win 98SE / 2000 / ME / XP / Mac OS 8.6 or higher
7) Dimensions: 76 x 32 x 11mm

Packing:
Blister packing
G.W.: 40g

OT-R09:
1) Compatible with USB2.0 / 1.1 standard
2) Supports SD, mini SD, MMC, RS-MMC, and T-Flash cards
3) Truly plug-and-play
4) USB bus-powered, need not external power supply
5) Power LED indicator
6) Supports auto-detecting slot with the card inserted
7) Dimensions: 86 x 24 x 7mm