compare TT312 and A801 for a compact thor robot - ethernet speed, power input, usb

Question

Rapidflare · Accepted Answer

Here's how the two compare for a compact Thor-based robot, focused on the attributes you asked about:

**Ethernet speed, power input, and USB — TT312 vs A801**

| Attribute | TT312 (Tauro Technologies) | A801 (Leetop) |
|---|---|---|
| Ethernet ports | 2 (zQSFP+ 4x 25GbE plus 1x RJ-45 GbE) | 1 |
| Max Ethernet speed | 25GbE | 2.5GbE |
| USB ports | 2 | 2 |
| Power input | 18–36 V DC | 12–12 V (as listed in the catalog) |
| Total power budget | 190 W | Not listed in the catalog |

Sources: TT312 and A801 product entries

**For a compact Thor robot, both are carrier boards for the same AGX Thor family (Jetson T5000 128GB / T4000 64GB modules), so the differences come down to I/O and power architecture** :

- **Ethernet:** The TT312 has a clear edge for a robot that needs high-bandwidth sensor fusion — its 25GbE interfaces (via zQSFP+ 4x 25GbE plus 1x RJ-45 GbE) vastly outpace the A801's single 2.5GbE port. If your robot carries high-throughput sensors (multi-camera rigs, lidar) and needs to move data fast, the TT312 is the better fit.
- **USB:** Identical — both offer 2 USB ports.
- **Power input:** The TT312 accepts 18–36 V DC (with a 190 W total power budget), which aligns well with typical robot battery rails (e.g., 24V/28V systems). The A801 is listed with a 12–12 V input range as stated in the catalog — worth verifying with Leetop if you plan to feed it from a higher-voltage rail.
- **Compactness:** The TT312's dimensions are listed as 82 x 20 x 112 mm with MIL-STD-810H shock/vibration ratings (operating) and a -20°C to 60°C operating range — useful if your robot's drivetrain exposes the controller to shock and vibration. The A801 supports fan or fanless cooling but its dimensions are not listed in the catalog.
- **Other I/O:** The A801 adds 2x CAN bus, 3x serial COM, HDMI, and 1x PCIe slot; the TT312 instead offers 2x M.2 M-key slots (vs the A801's 1), DisplayPort, 3 DIO channels, and a SE050 secure element.

**Bottom line:** For a compact robot needing high-bandwidth Ethernet and wide DC input range, the TT312 fits better. If you need CAN/serial for motor control and lower power draw with a 12V rail, the A801 may be simpler. Both carry identical AI performance ratings (1035 INT8 TOPS sparse, based on the same Thor module), so compute isn't a differentiator.

Attribute	TT312 (Tauro Technologies)	A801 (Leetop)
Ethernet ports	2 (zQSFP+ 4x 25GbE plus 1x RJ-45 GbE)	1
Max Ethernet speed	25GbE	2.5GbE
USB ports	2	2
Power input	18–36 V DC	12–12 V (as listed in the catalog)
Total power budget	190 W	Not listed in the catalog

TT312 vs A801 for a compact Thor robot: Ethernet speed, power input and USB

Sources