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| Series | EFB Series |
| Fan Type | Tubeaxial |
| Features | Locked Rotor Protection |
| Size / Dimension | Square - 40mm L x 40mm H |
| Width | 10.00mm |
| Bearing Type | Ball |
| Voltage - Rated | 5 VDC |
| Static Pressure | 0.057 in H2O (14.2 Pa) |
| Air Flow | 3.7 CFM (0.104m³/min) |
| Noise | 20.5dB(A) |
| Power (Watts) | 350 mW |
| Speed (RPM) | 4000 RPM |
| Termination | 2 Wire Leads |
| Operating Temperature | 14 ~ 158°F (-10 ~ 70°C) |
| Approval Agency | CE, CSA, UL, VDE |
| Weight | 0.032 lb (14.51 g) |
A: To ensure transaction security and accommodate standard corporate purchasing workflows, we support secure international Telegraphic Transfers (T/T Wire), major corporate Credit Cards, PayPal, and Letter of Credit (L/C) frameworks for large-scale procurement contracts.
A: Yes. For international shipping or extended warehouse storage in high-humidity regions, we offer upgraded industrial packaging options. This includes vacuum-sealed anti-static (ESD) barriers, desiccant packs, heavy-duty wooden crates, and shock-absorbent padding tailored to withstand harsh maritime transit conditions.
A: OKmarts operates under a strict Order Accuracy Guarantee. If the part numbers delivered do not match your approved Proforma Invoice or Purchase Order due to our fulfillment error, we will issue a full refund or expedite a replacement shipment immediately, covering all return international freight charges.
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A: If you need to return or request a refund, you can submit a return or refund request on the order page and follow the platform's return policy. We will process your request as soon as possible and ensure that your rights are protected.
A: If you need to cancel or modify an order, please contact our customer service team as soon as possible. We will do our best to meet your needs and provide assistance based on the order status and feasibility.
A: Once your order is shipped, you will receive a confirmation email with tracking information. You can use this information to track your order through the logistics provider's website.
Feb 17, 2026
Mar 30, 2025
