Here's the comparison of the three AVerMedia carrier boards on M.2 slots, CAN ports, and USB ports:
| Product | M.2 Slot Count | M.2 Slot Types | CAN Ports | USB Ports |
|---|---|---|---|---|
| D315 | 2 | E-key, M-key | 1 | 5 |
| D315-2 | 3 | B-key, E-key, M-key | 1 | 5 |
| D317 | 3 | M-key 2280, M-key 2280, E-key 2230 | 2 | 2 profession... +2professional.avermedia.com ↗“io.m2_slot_count=2, io.can_port_count=1, io.usb_ports=5”professional.avermedia.com ↗“io.m2_slot_count=3, io.can_port_count=1, io.usb_ports=5”professional.avermedia.com ↗“io.m2_slot_count=3, io.can_port_count=2, io.usb_ports=2” |
Key differences:
- M.2 slots: D315 has 2 (E-key + M-key), while both D315-2 and D317 have 3. D315-2 adds a B-key slot to the E-key and M-key; D317 offers two M-key 2280 slots (for dual NVMe) plus one E-key 2230. - CAN ports: Only D317 provides 2 CAN ports; D315 and D315-2 each have 1. profession... +1professional.avermedia.com ↗“io.can_port_count=1”professional.avermedia.com ↗“io.can_port_count=2” profession... +2professional.avermedia.com ↗“io.m2_slots=E-key, M-key”professional.avermedia.com ↗“io.m2_slots=B-key, E-key, M-key”professional.avermedia.com ↗“M-key 2280, M-key 2280, E-key 2230”
- USB ports: D315 and D315-2 lead with 5 USB ports each; D317 has 2. In short: if you need dual NVMe storage and an extra CAN bus (e.g., automotive/robotics control), the D317 is the stronger fit; if you need more USB peripherals, the D315 or D315-2 is the better choice, with the D315-2 additionally supporting Jetson AGX Orin Industrial modules. profession... +1professional.avermedia.com ↗“io.usb_ports=5”professional.avermedia.com ↗“io.usb_ports=2”