FTLF1621P1BCL - Finisar 2.7Gbps OC-48/ST-16 LR-2 Single-Mode Fibre 80km 1550nm Duplex LC Connector SFP Transceiver Module

FTLF1621P1BCL - Finisar 2.7Gbps OC-48/ST-16 LR-2 Single-Mode Fibre 80km 1550nm Duplex LC Connector SFP Transceiver Module

SKU: FTLF1621P1BCL Browse: 1G SFP & GBIC Transceivers Category: Transceiver
$499.50 In Stock — Ships Today

About the FTLF1621P1BCL

This FTLF1621P1BCL delivers Transceiver functionality and is built for 24/7 enterprise duty cycles. Technical specifications include wavelength of 1550 nm, range of 80 km. Workload fit covers VMware NSX overlay networking, Kubernetes pod-to-pod east-west bandwidth, Storage Replica replication, and high-throughput backup network paths between ToR switches and backup targets. Pro Disk Network sources the FTLF1621P1BCL through reputable distribution channels and applies a verification check against the OEM compatibility matrix before each unit is added to active inventory. Each unit ships from a US fulfillment hub (Hillsboro OR, Atlanta GA, or Phoenix AZ) with same-day dispatch on in-stock orders before 3pm ET. 90-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.

Specifications

Part Identification

Technical Specifications

  • Wavelength

    1550 nm

  • Range

    80 km

Order & Fulfillment Details

  • Condition

    Refurbished

    Quality Tier
    Professionally tested — new available on request
  • Warranty

    90-Day Pro Disk Network Warranty

    Coverage
    Advance replacement — we ship first, you return the faulty unit
  • Shipping

    Free over $150 — Same-Day Dispatch

    Cutoff
    Orders placed before 3pm ET
  • Returns

    30-Day Returns — US

    Return Window
    Original packaging required
Part Number / MPNFTLF1621P1BCL
CategoryTransceiver
Wavelength1550 nm
Range80 km
ConditionRefurbished — new available on request
Warranty90-Day Pro Disk Network Warranty — advance replacement
ShippingFree over $150 — Same-Day Dispatch
Returns30-Day Returns — US

Summary

The FTLF1621P1BCL is a enterprise-grade transceiver component with wavelength 1550 nm, range 80 km. Pro Disk Network sells the FTLF1621P1BCL for $499.50 with same-day US shipping and a 30-day return guarantee.

Trust Signals

  • US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
  • Same-Day US Shipping — orders before 3pm ET ship today via UPS
  • 30-Day Returns — pre-paid label on DOA and defective items

Quick Answer: Is the FTLF1621P1BCL compatible with my switch?

Pro Disk Network validates every FTLF1621P1BCL against the target switch's published compatibility matrix before shipment. If you let us know your switch model and firmware version, we will confirm fitment and code the module appropriately (Cisco-coded, Juniper-coded, HPE-coded, etc.) at no extra charge.

How fast does the FTLF1621P1BCL ship?

If in stock, the FTLF1621P1BCL ships same business day on US orders placed before 3 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.

Email engineering for a compatibility check ›

Common Use Cases for FTLF1621P1BCL

The FTLF1621P1BCL is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.

  • Spine-Leaf Fabric — Top-of-rack 25G/100G aggregation between leaf and spine switches. Match speed and form factor across both endpoints.
  • Server Uplink — 10G/25G server-to-leaf uplink — pair with matching DAC or AOC at the host NIC to avoid optic mismatch.
  • DCI (Data Center Interconnect) — Inter-DC routing or aggregation. LR4/LR8 transceivers for 10–80 km, ER4 for 40 km, ZR4 for coherent long-haul.
  • Campus Distribution — Catalyst-class campus distribution between IDF and MDF closets. PoE+ where wireless APs and IP phones share infrastructure.

What is the FTLF1621P1BCL?

The FTLF1621P1BCL is a network interface module with wavelength 1550 nm and range 80 km, manufactured for enterprise IT deployments. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.

Pros & Cons of FTLF1621P1BCL

Pros

  • Matched-pair option for redundant link orders
  • Cabling and DAC/AOC labels clearly mark optic class

Cons

  • Third-party optic — some firmware revs require "service unsupported transceiver-type"
  • Bulk DAC orders may ship LTL on >100-pc reels
  • Confirm transceiver coding before mixing vendors in the same chassis

Frequently Asked Questions about FTLF1621P1BCL

Is the FTLF1621P1BCL a genuine part?
Yes. Pro Disk Network sources every FTLF1621P1BCL as factory-original inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Is the FTLF1621P1BCL compatible with my switch?
Pro Disk Network validates every FTLF1621P1BCL against the target switch's published compatibility matrix before shipment. If you let us know your switch model and firmware version, we will confirm fitment and code the module appropriately (Cisco-coded, Juniper-coded, HPE-coded, etc.) at no extra charge.
How fast does the FTLF1621P1BCL ship?
If in stock, the FTLF1621P1BCL ships same business day on US orders placed before 3 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
What is the warranty on the FTLF1621P1BCL?
New FTLF1621P1BCL units carry the full manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the FTLF1621P1BCL?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.

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Pro Disk Network Buyer’s Guide: Transceiver

Optic Coding, Vendor Lock-In, and Multi-Vendor Compatibility

Networking optics — SFP, SFP+, QSFP+, QSFP28 — are physically interoperable across vendors but logically restricted by firmware coding. The FTLF1621P1BCL is coded for a specific vendor family at our factory step before shipping, which preserves the OEM warranty workflow and allows the optic to be recognised without ‘service unsupported-transceiver’ CLI overrides. Mixing third-party optics with same-vendor optics in the same chassis is safe; mixing across vendor codings sometimes triggers warnings in the switch log.

Bandwidth Sizing for Spine-Leaf, EVPN-VXLAN, and Hyperconverged Storage

For EVPN-VXLAN overlays, the FTLF1621P1BCL carries the underlay tunnels in addition to the workload traffic. Plan for VXLAN encapsulation overhead (50 bytes) plus MTU headroom; set the underlay MTU to 9216 (jumbo frames) and the overlay MTU to 9000. Make sure both the FTLF1621P1BCL and the connected NICs support jumbo frames — some older NICs cap at 9000-byte payloads even when jumbo-enabled.

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Enterprise Networking Hub

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