StarTech EC4S952 Serial Ports ExpressCard 4 - DB-9 (9 pin; D-Sub) Male Other Ports: 4 - DB-9 (9 pin; D-Sub) Male Interface: 34mm ExpressCard Temperature: Operating: 0 degree C to 55 degrees C (32 degrees F to 131 degrees F) Storage: -20 degrees C to 85 degrees C (-4 degrees F to 185 degrees F) Humidity: 5~95% RH Dimensions: 0.80 x 1.30 x 4.60 (H x W x L) Operating Systems Supported: Windows® 8 / 8.1 (32/64bit), 7 (32/64), Vista (32/64), XP (32/64), XP Embedded, CE 6.0/5.0/4.2, 2000 Windows Server® 2012, 2008 R2, 2003 Linux Package Contents: 4 port ExpressCard RS232 Adapter 34 to 54 mm slot spacer Driver CD Instruction Manual Parts: 2 Year