Condition: Used

The Finisar FTL4C1QM1C is a QSFP+ multi-rate optical transceiver designed for 40G LR4 and OTU3 applications. This used unit is suitable for high-speed data centre, telecom, and enterprise network deployments requiring long-reach 40G connectivity.

Typically includes:
• Finisar FTL4C1QM1C QSFP+ transceiver module

The Finisar FTL4C1QM1C is a QSFP+ form factor optical transceiver module designed for 40 Gigabit Ethernet and OTU3 multi-rate applications. It is compliant with the IEEE 802.3ba 40GBASE-LR4 standard and supports operation over standard single-mode fibre at distances of up to 10 km.

The module uses four CWDM (Coarse Wavelength Division Multiplexing) lanes on the transmit side, each operating at approximately 10 Gbps, combined onto a single LC duplex fibre pair. This makes it well suited for long-reach 40G interconnects in data centres, carrier networks, and enterprise environments.

Form Factor: QSFP+
Connector Type: LC Duplex
Fibre Type: Single-Mode Fibre (SMF)
Max Reach: Up to 10 km
Data Rate: 40 Gbps aggregate
Protocol Support: 40GBASE-LR4, OTU3 (multi-rate)
Transmit Technology: CWDM (4 x ~10G lanes)
Wavelengths: 1271 nm, 1291 nm, 1311 nm, 1331 nm
Operating Temperature: 0°C to +70°C
Power Consumption: Typically ≤3.5 W
Compliance: IEEE 802.3ba, QSFP+ MSA
Digital Diagnostics: Yes (DDM/DOM)

Please refer to the Finisar/II-VI manufacturer website for full and current specifications.

Finisar FTL4C1QM1C QSFP+ 40G LR4 Product Specification Datasheet: Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.