---
product_id: 335735686
title: "FCLF8521P2BTL 1000Base-T Copper SFP Transceiver"
brand: "finisar"
price: "S$232"
currency: SGD
in_stock: true
category: "Finisar"
url: https://www.desertcart.sg/products/335735686-fclf8521p2btl-1000base-t-copper-sfp-transceiver
store_origin: SG
region: Singapore
---

# 1.25Gbps ultra-fast data transfer Hot-pluggable for zero downtime Operates from -40°C to +85°C FCLF8521P2BTL 1000Base-T Copper SFP Transceiver

**Brand:** finisar
**Price:** S$232
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your network game with Finisar’s powerhouse transceiver!

## Quick Answers

- **What is this?** FCLF8521P2BTL 1000Base-T Copper SFP Transceiver by finisar
- **How much does it cost?** S$232 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/335735686-fclf8521p2btl-1000base-t-copper-sfp-transceiver)

## Best For

- finisar enthusiasts

## Why This Product

- Trusted finisar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Power:** Hot-pluggable SFP design means no interruptions—upgrade or replace on the fly.
- • **Shielded for Stability:** Fully metallic enclosure minimizes EMI, keeping your signal crystal clear.
- • **Built to Brave Extremes:** Extended temperature range ensures rock-solid reliability in any environment.
- • **Blazing Fast Connectivity:** Experience seamless 1.25Gbps bi-directional data flow for next-level network performance.
- • **Eco-Conscious Engineering:** RoHS compliant and lead-free for a greener, safer tech footprint.

## Overview

The Finisar FCLF8521P2BTL is a 1000Base-T Copper SFP transceiver delivering up to 1.25Gbps bi-directional data transfer. Its hot-pluggable design enables seamless upgrades without downtime, while the fully metallic enclosure reduces electromagnetic interference. Engineered to operate reliably in extreme temperatures from -40°C to +85°C, this RoHS-compliant, lead-free module is a robust, eco-friendly choice for professional-grade networking.

## Description

FCLF8521P2BTL 1000Base-T Copper SFP Transceiver

## Features

- Features: Up to 1.25Gb/s bi-directional data links Hot-pluggable SFP footprint Extended case temperature range (-40¡ãC to +85¡ãC ) Fully metallic enclosure for low EMI RoHS compliant and Lead Free Low
- Brand: Finisar
- Imported

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B017U4EA86 |
| Batteries Included | No |
| Batteries Required | No |
| Brand | Finisar |
| Colour Screen | No |
| Country of Origin | USA |
| Data Transfer Rate | 1250 Megabits Per Second |
| Date First Available | 17 August 2016 |
| Does it contain liquid? | No |
| Includes Rechargeable Battery | No |
| Includes remote | No |
| Item Dimensions LxWxH | 3 x 3 x 3 Millimeters |
| Item Weight | 22.7 g |
| Item model number | FCLF8521P2BTL |
| Manufacturer | Finisar |
| Model | FCLF8521P2BTL |
| Model Year | 2014 |
| Product Dimensions | 0.25 x 0.25 x 0.25 cm; 22.68 g |

## Images

![FCLF8521P2BTL 1000Base-T Copper SFP Transceiver - Image 1](https://m.media-amazon.com/images/I/51zeSlFtWAL.jpg)

## Frequently Bought Together

- FCLF8521P2BTL 1000Base-T Copper SFP Transceiver
- FLYPROFiber- LC to LC Fiber Patch Cable 1M/3ft, OM3 Multimode Fiber Optic Cable Cord, 10GB/40GB, Duplex, 50/125um, LSZH, Options: 0.2m-200m
- FLYPROFiber- 1M/3ft OS2 Single Mode LC to LC Fiber Patch Cable, SM Singlemode Duplex, SMF Fiber Optic Cable Cord, 1G/10GB, 9/125um, LSZH

---

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**Shop now:** [https://www.desertcart.sg/products/335735686-fclf8521p2btl-1000base-t-copper-sfp-transceiver](https://www.desertcart.sg/products/335735686-fclf8521p2btl-1000base-t-copper-sfp-transceiver)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-25*