Open Workbench logic sniffer

Features
Capture 50MHz+ waveforms on 32 channels
200Msps captures up to 100MHz waveforms on 16 channels
100Msps captures up to 50MHz waveforms on 32 channels
16 buffered channels, 5volt tolerant
M74LCX16245DTR2G transceiver tolerates voltages from -0.5V to +7V.
216K Block RAM supports following memory configurations*
8 channels with 24K sample depth
16 channels with 12K sample depth
32 channels with 6K sample depth
External clock and trigger input
Allows interfacing with external test equipment and daisy chaining OLS's for additional channels.
Internal clock and trigger output
16bit wing expansion header
USB interface, USB powered
USB upgradable everything
Designed for the SUMP logic analyzer client
Open source
Low price
*Memory depth is the maximum supported by the hardware, the current firmware implements the following memory depths:

8 channels with 16K sample depth
16 channels with 8K sample depth
32 channels with 4K sample depth

Future firmware upgrades will support the maximum memory configurations.