Pro-Buyer's Guide: PC-104 Modules (Showroom)
This guide focuses on navigating the PC-104 module offerings on Alibaba, maximizing value and minimizing risk. PC-104 modules are compact, ruggedized x86 single-board computers, typically used in industrial, military, and embedded applications.
Understanding the Landscape: The showroom presents modules from numerous manufacturers. Specifications will vary significantly. Don't assume compatibility based solely on the "PC-104" designation.
Key Considerations (Prioritize these):
- Processor: Identify the CPU (Intel Atom, Celeron, Pentium, Core i-series). Performance dictates suitability for your application. Check generation – newer generations offer significant efficiency gains.
- Chipset: Crucial for feature set (USB versions, SATA support, PCI/PCIe availability). Datasheets are essential.
- Memory (RAM): Determine the type (DDR3, DDR4, etc.), speed, and maximum supported capacity. Soldered RAM limits future upgrades.
- Storage: Confirm supported storage types (SATA, mSATA, eMMC, CF). Consider capacity needs and read/write speeds.
- I/O: Precisely list required ports (Ethernet, USB, Serial, VGA, HDMI, CAN bus, etc.). Verify the number and version of each.
- Operating System Support: Confirm compatibility with your target OS (Windows, Linux, real-time OS). Driver availability is critical.
- Form Factor & Connectors: PC-104, PC-104 Plus, EBX, and other variations exist. Ensure physical compatibility with your system. Connector types (e.g., standard PC-104, Hirose) matter.
- Operating Temperature: Industrial applications demand extended temperature ranges (-40°C to +85°C is common). Verify specifications.
- Certifications: Look for relevant certifications (CE, FCC, RoHS, ISO). These indicate adherence to quality and safety standards.
Safety & Risk Mitigation:
Supplier Verification: Utilize Alibaba’s Supplier Verification program. "Gold Supplier" status is not* a guarantee of quality; investigate further. Check business licenses and operational history.
Trade Assurance: Always* use Trade Assurance. This protects your payment if the goods are not shipped or are not as described.
Sample Ordering: Order samples before* committing to large quantities. Thoroughly test the sample in your target application.
- Communication: Maintain clear, documented communication with the supplier. Ask specific questions and request detailed datasheets. Confirm lead times and shipping costs.
Datasheet Scrutiny: Don't rely on marketing materials. Download and carefully* review the full datasheet for each module. Pay attention to absolute maximum ratings.
- Warranty: Understand the warranty terms and conditions. What is covered, and what is the process for claiming a warranty?
Productivity Tips:
- Filter Effectively: Use Alibaba’s filters to narrow down options based on key specifications.
- Request Quotes: Contact multiple suppliers to compare pricing and lead times.
- Save Favorites: Save modules of interest to your favorites list for easy comparison.
- Document Everything: Keep records of all communication, quotes, and specifications.