SiNAPS Probe Maps
Site numbering for the SiNAPS 1S-256, 4S-1024 and 8S-1024 probes, at print resolution.
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Updated August 31, 2026
These maps translate between a channel number in Allego and a physical site on the shank. Sites run from the tip upward in adjacent pairs — 1 and 2 at the tip, and so on to the top of the active region.
Research use only. NeuroNexus products and the procedures described here are for non-clinical research use, and must not be used in human or veterinary medical procedures.
Site geometry, shank dimensions and the rest of the specification live on each probe's product page; these are maps, not datasheets. For the procedures that use them — calibration, insertion, troubleshooting — see the SiNAPS Manual.
SiNAPS-1S-256#

SiNAPS-4S-1024#

SiNAPS-8S-1024#

Packages and dimensions#
The probe ships on a package board; the maps above number the sites, and these give the board's outline. The optogenetic packages share the dimensions of the standard ones, with a 1.25 mm ferrule added.


Also available as PDFs#
NeuroNexus publishes the same maps as PDFs, which print at scale: