Published: July 30, 2026 | Category: Technical | QSCompute
Walk through any smart factory in 2026 and you'll find dozens of 嵌入式 modules quietly running AI inference — inside vision inspection cameras, robot controllers, CNC gateways, and autonomous forklifts. These aren't off-the-shelf desktop PCs. They're Computer-on-Module (COM) designs where a processor module plugs into a custom carrier board, combining standardized compute with application-specific I/O.
Two form factors dominate the industrial landscape: SMARC 2.1 (82 mm × 50 mm, ARM/x86 ultra-low-power) and COM Express (Mini 84 mm × 55 mm, Compact 95 mm × 95 mm, Basic 125 mm × 95 mm). Choosing between them determines your TDP ceiling, I/O flexibility, carrier board complexity, and ultimately your BOM cost. This guide compares pinouts, processor options, and real carrier board design tradeoffs — plus five QSCompute pre-integrated 嵌入式 systems using both standards.
| Parameter | SMARC 2.1 | COM Express Mini (Type 10) | COM Express Compact (Type 6) | COM Express Basic (Type 7) |
|---|---|---|---|---|
| Dimensions | 82 × 50 mm | 84 × 55 mm | 95 × 95 mm | 125 × 95 mm |
| PCB Area | 4,100 mm² | 4,620 mm² | 9,025 mm² | 11,875 mm² |
| Connector | 314-pin MXM 3.0 edge | 220-pin (A-B only) | 440-pin (A-B + C-D) | 440-pin (A-B + C-D) |
| Max TDP | 6–15W | 6–15W | 15–65W | 45–95W |
| Typical CPUs | NXP i.MX 8M Plus, Rockchip RK3588, Intel Atom x7000E, MediaTek Genio | Intel Atom x7000E, Celeron N-series, AMD Ryzen Embedded V2000 | Intel Core Ultra 7/9, Xeon D, AMD Ryzen Embedded V3000 | Intel Xeon D-2800, Xeon W |
| RAM Support | Soldered LPDDR4/LPDDR5 (4–16 GB) | Soldered LPDDR5 (4–16 GB); some SODIMM | 2× SODIMM DDR5 (up to 64 GB) | 4× RDIMM DDR5 (up to 512 GB ECC) |
| PCIe Lanes | 1× PCIe 3.0 (x1) | 4× PCIe 3.0 | 8× PCIe 4.0 (or 1× PEG x8) | 32× PCIe 4.0 |
| Display Outputs | 2× MIPI-DSI, 1× LVDS, 1× HDMI 2.0 | 1× eDP/DP, 1× DDI | 3× DDI (DP/HDMI), 1× eDP, 1× LVDS | VGA header, 3× DDI |
| Ethernet | 1× GbE (some 2.5GbE) | 1× GbE | 1× GbE (some 2.5GbE) | Up to 4× 10GbE |
| Target Application | HMI panels, IoT gateways, portable medical | Thin clients, digital signage, entry kiosks | Vision inspection, robot controllers, edge AI servers | Rugged servers, network appliances, telecom edge |
| Module Price (2026) | $120–$450 | $180–$550 | $400–$1,500 | $900–$3,200 |
The module is only half the system. The carrier board — a custom PCB that routes the module's signals to physical ports, power regulation, and peripheral controllers — is where 嵌入式 engineering time and BOM cost accumulate.
SMARC carriers are the cheapest and fastest to design. The 314-pin MXM connector carries LVDS, MIPI-DSI, USB 3.0, GbE, I²C, SPI, and audio on a single edge connector — no high-speed differential pair routing beyond PCIe x1. A 4-layer carrier board for a SMARC module costs $15–$25 in QTY 500. Design time: 4–6 weeks for an experienced layout engineer.
COM Express Compact carriers cost significantly more. The 440-pin connector carries 8× PCIe 4.0 lanes, 4× USB 3.2 Gen2, and 3× DisplayPort outputs — all high-speed differential pairs requiring controlled impedance routing. A 6-layer carrier typically costs $40–$80 in QTY 500. Design time: 8–12 weeks.
COM Express Basic carriers are the most expensive: 32× PCIe 4.0 lanes plus 4× 10GbE requires 8–10 layer PCBs with back-drilled vias. QTY 500 pricing: $80–$150. Design time: 12–16 weeks.
For many 嵌入式 edge AI applications with sub-15W TDP, the carrier board cost alone can make SMARC the financially compelling choice — even if the module itself costs the same as a COM Express Mini.
| System | Standard | Module | Acceleration | I/O Highlights | Price |
|---|---|---|---|---|---|
| QS-SBC-RK3588 NEW | SMARC 2.1 | Rockchip RK3588 (8W) | NPU 3.0 (6 TOPS) | 2× GbE, HDMI 2.1, 2× MIPI-CSI, RS485, CAN 2.0 | $580 |
| QS-SBC-IMX8P | SMARC 2.1 | NXP i.MX 8M Plus (6W) | NPU (2.3 TOPS) | 2× GbE (1× TSN), LVDS, MIPI-DSI, RS232/485, isolated CAN-FD | $490 |
| QS-SBC-ATOM | COM Express Mini | Intel Atom x7425E (12W) | Intel UHD | 2× 2.5GbE, DP++, USB 3.2, M.2 NVMe | $750 |
| QS-SBC-COREU7 | COM Express Compact | Core Ultra 7 265H (28W) | NPU 2.0 (48 TOPS) | 4× 2.5GbE, 2× DP++, 4× USB 3.2, PCIe x4 slot | $1,890 |
| QS-SBC-XEOND | COM Express Basic | Xeon D-2836 (95W) | PCIe x16 for GPU | 4× 10GbE SFP+, 2× PCIe x16, 8× RDIMM ECC | $3,950 |
The most significant 嵌入式 development of 2026 is the arrival of SMARC 2.1 modules with integrated NPUs delivering 6 TOPS (RK3588), 13 TOPS (Hailo-8 co-processor), and even 26 TOPS (MediaTek Genio 1200 with Hailo-15H). These modules deliver the edge AI inference performance that previously required a COM Express Compact form factor — but in a 4,100 mm² footprint consuming 8–15W. For the 80% of factory-floor AI workloads that don't need a discrete GPU (classification, anomaly detection, barcode reading, PPE compliance), a SMARC module is now the optimal choice.
Building a custom 嵌入式 system with SMARC or COM Express?
QSCompute supplies pre-integrated modules with carrier boards, or we can source the module + reference design for your in-house carrier development.
Contact: +86 137-1464-6179 | info@qscompute.com