Neural Probes · A-Series (Polytrode & Tetrode)
2-Shank 48-Channel Probe, 9.217 mm
Sites clustered rather than spread — polytrode and tetrode groups a sorter can separate

Two long shanks side by side, with sites staggered in two columns so neighbouring sites see the same units. Among the 371 probe designs in the design space it is mid-range: 48 sites (73rd percentile), 9.2 mm shanks (67th percentile of the 366 measured), a 2.37 mm-deep site array (85th percentile), 200 sites/mm² (47th percentile) and a 0.86 mm³ neural interface (62nd percentile).
Small sites read a local patch at higher impedance, sharpening single-unit isolation, spaced for a laminar profile. The long shanks reach deep targets.
Orders as a probe-plus-package assembly, in 3 package configurations. Silicon 15 µm thick. Z-coat available. Research use only.
SKU prb_ahc--a1x48_poly2_5mm100s_177 · Neural Probes in the webstore
Specifications
| Channels | 48 |
|---|---|
| Shanks | 2 |
| Shank length | 9.217 mm |
| Site layout | Poly2 |
| Site area | 177 µm² |
| Site pitch | 100 µm |
| Vertical span | 2365 µm |
| Substrate | Silicon |
|---|---|
| Site material | Iridium |
| Thickness | 15 µm |
| Neural interface volume | 0.862 mm³ (higher than 62% of 371 designs) |
| Site coverage density | 199.6 sites/mm² (higher than 47% of 371 designs) |
| Brain coverage density | 55.7 sites/mm³ (higher than 61% of 371 designs) |