Style: CF Type I (3.3 mm thick) 
Size: 42.8mm x 36.4mm x 3.3mm 
Op. Voltage: 3.3V-5V. Op. 
Temperature: −25 to +85 °C 
Durability: 10,000 insertion/removal cycles 
Compatibility: compatible with the Compact Flash slot and PCMCIA card standards, All High-end digital photographic
 applications. High transfer rate for fast copy/download Tech Specify 

Manufacturer Part Number MEM1800-32U256CF 
 Product Name  256MB CompactFlash Card 
Manufacturer Cisco Systems, Inc Product Type CompactFlash (CF) Card Brand Name Cisco Compatibility · 
Cisco 1800 Series Routers 
· Cisco 1841 ADSL over ISDN Bundle · 
Cisco 1841 ADSL over POTS Bundle ·
 Cisco 1841 ADSL over POTS Bundle w/Dying Gasp · 
Cisco 1841 Integrated Services Router · Cisco 1841 Security Bundle ·
 Cisco 1841 with WIC-1DSU-T1-V2 
 Application/Usage Networking System Form Factor CompactFlash (CF) Number of Memory Cards 1 Storage Capacity 256 MB