Neural Probes · A-Series
Edge 8-Shank 256-Channel Probe, 5 mm
Sites spread along the shank — linear and edge layouts for depth profiling

Eight mid-length shanks side by side, closely spaced for coverage within one structure, with sites along the shank's edge, closest to the tissue the probe faces. Among the 371 probe designs in the design space it sits at the top: 256 sites (99th percentile), 5 mm shanks (a common choice — 107 of 363), a 2.34 mm-deep site array (84th percentile), 62 sites/mm² (24th percentile) and a 3.21 mm³ neural interface (96th percentile).
Small sites read a local patch at higher impedance, sharpening single-unit isolation, spaced for a laminar profile. The mid-length shanks reach structures a few millimetres down.
Orders as a probe-plus-package assembly, in 5 package configurations. Silicon 50 µm thick. Z-coat available. Research use only.
SKU prb_acl--a8x32_edge_5mm_75_250_177 · Neural Probes in the webstore
Specifications
| Channels | 256 |
|---|---|
| Shanks | 8 |
| Shank length | 5 mm |
| Shank separation | 250 µm |
| Site layout | Edge |
| Site area | 177 µm² |
| Site pitch | 75 µm |
| Vertical span | 2340 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 50 µm |
| Neural interface volume | 3.212 mm³ (higher than 96% of 371 designs) |
| Site coverage density | 62.1 sites/mm² (higher than 24% of 371 designs) |
| Brain coverage density | 79.7 sites/mm³ (higher than 78% of 371 designs) |