Sorry, that product is no longer available. But here are other great products for you to choose from.
56K CONCORDE PCIE MODEM INTSPARE PRO
CONCORDE PCIE 56K MODEM
Cisco High Density Analog and Digital Extension Module for Voice and Fax - Voice / fax module - expansion slot - analog ports: 8 - for Cisco 2821 4-pair, 28XX, 28XX V3PN, 29XX, 38XX, 38XX V3PN, 39XX