47xx 16 Bit Digitizers 1 MS/s | Spectrum
The 47xx series has been optimized for a high channel count on a single card. There are up to 16 simultaneous channels on the card, each with its own ADC and own programmable amplifier with 8 different input ranges. Utilizing several 47xx series cards within one system synchronized with the star-hub one can build up multi channel systems up to 256 synchronous channels. Each of the channels can be used as trigger source with a combination of AND and OR conjunctions allowing to monitor all channels simultaneously.
There are some alternative products if you need true differential inputs, a higher sampling speed or less channels per card: