These cards are sold in seperate modules on our site.
For more info how to create your AEX8xx card > Scroll to the bottom of this page

Digium AEX800
The AEX800 is a half-length PCI-Express 1.0-compliant, 8 port analog interface card. It supports combinations of station and/or trunk/line modules for a total of eight (8) interfaces.

Overview.
Like our PCI-based TDM800P, the AEX800 provides an industry first with 8 standard two-wire, RJ-11 interfaces on a single card bracket. This eliminates the need for multiple brackets, external dongles, or splitters. In doing so, the AEX800 reduces part complexity, cable clutter, and points of failure.

The AEX800 contains two module banks. Each bank supports up to four analog interfaces and may be filled either with one standard Digium quad station (S400M) or line/trunk (X400M) analog module, or up to two standard Digium single analog station (S110M) or line/trunk (X100M) modules, enabling the creation of any combination of ports

The optional VPMADT032 hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior echo cancellation on both types of analog interfaces.

If the hardware echo cancellation module is not installed, the AEX800 may be used in conjunction with Digium's High Performance Echo Cancellation (HPEC) software, a commercial and toll quality hybrid echo cancellation solution.

Digium's HPEC provides 16ms to 128ms of selectable near-end ITU G.168 compliant echo cancellation in software.

Using this card in concert with Digium's Asterisk software, standard PC hardware, and the Linux OS, you can create SMB or SOHO telephony environments capable of satisfying the needs of small or medium business applications at an industry-leading price.

FXO/FXS Module Combination Comparrison Guide
Cards Without Echo Annulation Module 

Cards With Echo Annulation Module

These cards are sold in seperate modules on our site.
You are now on the page of the AEX Card: AEX800P
Here you can find the FXO Module: X100M (=1 Port)
Here you can find the FXS Module: S110M (=1 Port)
Here you can find the 4 Port FXO Module: X400M
Here you can find the 4 Port FXS Module: S400M
Here you can find the Echo Cancellation Module: VPMADT032

Please Note that 4 ports are made with a Quad port module.
So for example A card with 5 ports FXO would be: AEX805 = 1 Quad FXO Port Module & 1 FXO Single Port Module

Download here the 800 Series User Manual
Download here the Analog Cards Datasheet
Download here the Analog/Digital Hardware Datasheet
Download here the Echo Cancellation Module Datasheet