The AAEON PICO-PTH4 is a 100 × 72mm Pico-ITX single-board computer powered by Intel Core Ultra Series 3 (Panther Lake) processors. It delivers up to 180 TOPS of combined AI compute to eliminate inference bottlenecks in space-constrained edge nodes, though system integrators must account for the absence of SATA ports, soldered non-ECC memory, and a 79.8W peak power envelope.
How Does the AAEON PICO-PTH4 Balance Heterogeneous Compute and Board Density for Edge AI?
The AAEON PICO-PTH4 packs 25W base-power Intel Core Ultra Series 3 (Panther Lake) processors into a standard 100 × 72mm Pico-ITX footprint, combining P-cores, E-cores, LP-E cores, integrated Xe graphics, and a dedicated NPU to deliver up to 180 TOPS of total platform AI performance.
In machine vision and autonomous mobile robot (AMR) controller designs, physical volume and local inference throughput are usually at odds. Built by AAEON, the PICO-PTH4 addresses this across four processor SKUs. Every option includes a dedicated 47 to 50 TOPS NPU, allowing continuous, low-power neural network workloads to be offloaded from the CPU and GPU.
| Processor SKU | Core / Thread Topology | Max Boost Clock | Cache | Integrated GPU Architecture | NPU Performance | Onboard Memory | Unit Price (MSRP) |
|---|---|---|---|---|---|---|---|
| Core Ultra X7 358H | 16C/16T (4P + 8E + 4 LP-E) | 4.8GHz | 18MB | Intel Arc B390 (12 Xe-cores, 2.5GHz) | 50 TOPS | Up to 32GB LPDDR5X-7467 | $3,065 |
| Core Ultra 7 355 | 8C/8T (4P + 4 LP-E) | 4.7GHz | 12MB | Intel Graphics (4 Xe-cores, 2.5GHz) | 49 TOPS | Up to 32GB LPDDR5X-7467 | $1,456 |
| Core Ultra 5 338H | 12C/12T (4P + 4E + 4 LP-E) | 4.7GHz | 18MB | Intel Arc B370 (10 Xe-cores, 2.4GHz) | 47 TOPS | Up to 32GB LPDDR5X-7467 | TBA |
| Core Ultra 5 325 | 8C/8T (4P + 4 LP-E) | 4.5GHz | 12MB | Intel Graphics (4 Xe-cores, 2.45GHz) | 47 TOPS | Up to 32GB LPDDR5X-7467 | $1,288 |
From a silicon selection standpoint, there is a sharp architectural divide between the H-series and standard SKUs. The Core Ultra X7 358H and Core Ultra 5 338H retain the main E-core cluster and integrate Intel Arc B390 / B370 graphics with 10 to 12 Xe-cores. Conversely, the 355 and 325 SKUs drop the standard E-cores entirely (relying solely on 4P + 4 LP-E cores) and scale the GPU back to 4 Xe-cores. If your software pipeline leans heavily on OpenVINO GPU execution for parallel matrix math or multi-stream video decode, you need the 358H or 338H. If the workload runs mostly on the NPU alongside standard control loops, the 325 and 355 offer a much cleaner cost-to-performance ratio.
To prevent memory bandwidth from choking the 180 TOPS compute engine, the board uses soldered LPDDR5X running at up to 7,467 MT/s (up to 32GB). Compared to traditional SO-DIMM socketed designs, the AAEON PICO-PTH4 uses soldered LPDDR5X to maximize shared GPU/NPU memory bandwidth and eliminate mechanical fretting under heavy vibration, though this locks capacity at the factory and restricts the system to non-ECC memory.
PICO-PTH4 block diagram
How Does the AAEON PICO-PTH4 Route High-Speed I/O and Industrial Interfaces Within a 100 × 72mm Footprint?
The AAEON PICO-PTH4 commits to an all-PCIe storage and expansion topology—featuring a PCIe 5.0 x4 M.2 2280 slot, a PCIe 3.0 x4 FPC connector, and dual Intel I226 2.5GbE ports—while dropping legacy SATA interfaces to reclaim PCB routing area.
Ingesting sensor payloads from multi-camera arrays or LiDAR units while logging raw frames requires careful bus allocation. The board partitions its I/O across coastline connectors and internal pin headers:
- High-Speed Storage & PCIe Expansion: An M.2 2280 M-Key socket is wired for PCIe 5.0 x4 to handle high-throughput NVMe SSDs. For custom daughterboards, an onboard FPC connector exposes a PCIe 3.0 x4 interface, giving hardware teams a direct path to attach frame grabbers, FPGA accelerators, or extra network interfaces. An M.2 2230 E-Key slot provides PCIe 4.0 x1 and USB 2.0 signaling for Wi-Fi/Bluetooth or cellular modules.
- Networking & Vision I/O: Dual RJ45 ports driven by Intel I226 2.5GbE controllers (with PXE boot enabled on one port) sit alongside two external USB 3.2 Gen 2 ports, providing enough bandwidth for concurrent GigE Vision or USB3 Vision camera streams. Local display output is handled by a single HDMI 2.1 port supporting up to 3840 × 2160 @ 60Hz.
- Industrial Serial & Low-Speed Control: A 20-pin internal header breaks out two configurable RS-232/422/485 serial ports (with specific electrical options set by board configuration). The board also provides 4-bit GPIO, two internal USB 2.0 ports via a pin header, and a 5-pin header multiplexed for SMBus, I2C, or timed GPIO.
Unlike earlier AAEON Pico-ITX generations that retained SATA ports, the AAEON PICO-PTH4 eliminates bulky SATA cabling and throughput bottlenecks by shifting entirely to M.2 NVMe and FPC PCIe expansion, at the cost of dropping native support for 2.5-inch SATA drives. Hardware engineers routing PCIe 3.0 x4 over the FPC connector must also pay close attention to differential impedance matching and flex-cable length to preserve signal integrity in high-EMI industrial enclosures. Additionally, because SMBus, I2C, and timed GPIO share the same 5-pin header, pin-mux assignments must be locked down early in schematic capture.
PICO-PTH4 top view
What Do a 79.8W Peak Power Envelope and Linux Kernel 7.0 Mean for System Integration?
When configured with the flagship Core Ultra X7 358H and 32GB of RAM, the AAEON PICO-PTH4 draws 54.7W typical and 79.8W peak power —requiring active cooling via its 4-pin smart fan header or heavy-duty cold-plate conduction—while standardizing software support on Windows 11 and Ubuntu 26.04 with Linux kernel 7.0.0-14.
Although the processors carry a nominal 25W rating, concurrent boost states across the CPU, GPU, and NPU push board-level power draw close to 80W (~6.65A at 12V DC input). That figure dictates two critical mechanical and electrical design choices:
- Power Delivery & Connector Retention: The board ships standard with a 2-pin Phoenix terminal block and offers a lockable DC jack as a build option, supporting both AT and ATX power modes. In mobile or high-vibration deployments, the Phoenix terminal provides much better mechanical retention and current-carrying margin than standard barrel jacks. Upstream 12V power supplies should be sized with at least 100W capacity to absorb transient load spikes.
- Thermal Flux Density: Dissipating 54.7W to 79.8W across a 100 × 72mm footprint creates severe thermal flux density. While the board is rated for an operating temperature range of -20°C to +70°C, running sustained AI workloads near the +70°C ambient ceiling on a small passive heatsink will quickly induce thermal throttling. Enclosures must either utilize the onboard 4-pin smart fan connector for forced-air cooling or couple the SoC directly to a massive chassis wall. For unattended field reliability, the board integrates a hardware watchdog timer, TPM 2.0, Wake-on-LAN, and a front-panel header (power/reset buttons, status LEDs, and buzzer).
On the software and BSP side, Panther Lake's three-tier hybrid core topology (P + E + LP-E), Arc B-series graphics, and fifth-generation NPU require up-to-date kernel scheduling and driver support. AAEON targets Ubuntu 26.04 running Linux kernel 7.0.0-14 right out of the gate. Compared to embedded boards locked to older LTS kernels, adopting Linux kernel 7.0.0-14 on the AAEON PICO-PTH4 guarantees native mainline driver support for the Panther Lake Thread Director, NPU, Intel I226 NICs, and timed GPIO, though software teams porting legacy out-of-tree kernel modules will need to verify API compatibility against the 7.0 kernel headers.
PICO-PTH4 side view
PICO-PTH4 bottom view
Engineering Selection Boundaries: When to Choose (and When to Avoid) the AAEON PICO-PTH4
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Ideal Target Applications (Green Light):
- Compact Edge AI & Machine Vision Controllers: Systems requiring up to 180 TOPS platform compute, a 50 TOPS NPU, and PCIe 5.0 x4 NVMe throughput inside a 100 × 72mm envelope.
- Multi-Sensor Fusion Nodes: Designs pulling high-bandwidth data from dual Intel I226 2.5GbE and dual USB 3.2 Gen 2 ports while synchronizing external hardware via RS-232/422/485 and timed GPIO.
- Custom Mezzanine/Daughterboard Designs: Specialized appliances leveraging the FPC connector (PCIe 3.0 x4) to stack proprietary I/O or accelerator cards.
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Hardware Constraints & Dealbreakers (Red Flags):
- Legacy SATA Storage Requirements: The board has zero SATA ports; 2.5-inch SATA SSDs/HDDs cannot be connected natively.
- Mandatory ECC or >32GB Memory: Onboard LPDDR5X is capped at 32GB, is strictly non-ECC, and cannot be upgraded post-manufacturing.
- Sealed, Unventilated Mini-Enclosures Under Full Load: With typical draw at 54.7W and peak draw hitting 79.8W on the X7 358H SKU, deploying this board at full load without forced airflow (via the 4-pin smart fan header ) or substantial chassis conduction will result in thermal throttling.
- Strict Dependency on Legacy Linux Kernels: With official Linux validation anchored on Ubuntu 26.04 (Linux kernel 7.0.0-14), projects tied to unmaintained proprietary drivers built for older 5.x or 6.x kernels will face porting overhead.
PICO-PTH4
Frequently Asked Engineering Questions (FAQ)
Q: What are the input power requirements and measured power consumption of the AAEON PICO-PTH4?
A: It requires a 12V DC input via a standard 2-pin Phoenix connector or optional lockable DC jack. Equipped with a Core Ultra X7 358H and 32GB LPDDR5X, typical consumption is 54.7W and maximum consumption reaches 79.8W.
Q: What storage and PCIe expansion interfaces are available on the AAEON PICO-PTH4?
A: There are no SATA ports. Expansion includes one M.2 2280 M-Key slot (PCIe 5.0 x4 for NVMe), one M.2 2230 E-Key slot (PCIe 4.0 x1 + USB 2.0), and one FPC connector routing PCIe 3.0 x4.
Q: Which operating systems and Linux kernel versions are officially supported on the AAEON PICO-PTH4?
A: Official support covers Windows 11 and Ubuntu. According to AAEON's current datasheet, Linux support specifically targets Ubuntu 26.04 running Linux kernel 7.0.0-14.
Availability and Official Pricing
The AAEON PICO-PTH4 is currently in mass production and available directly through the official AAEON eShop. Three configurations are currently in stock with published single-unit pricing:
- Intel Core Ultra 5 325 configuration: $1,288
- Intel Core Ultra 7 355 configuration: $1,456
- Intel Core Ultra X7 358H configuration: $3,065
Note: Official pricing for the Intel Core Ultra 5 338H SKU has not yet been listed.
Originally published on EmbedSBC — embedded systems, SBC and edge-AI hardware analysis.
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