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Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
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Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
QSFP-40G-ER4=
QSFP 40GBASE-ER4 TRANSCEIVER MODULE LC 40KM
$47,444.45
$9,488.90
36 in Global Warehouse 
$9,488.90
80% off
| Name: |
QSFP-40G-ER4= |
| Description: | QSFP 40GBASE-ER4 TRANSCEIVER MODULE LC 40KM |
| Rating: |
(0)
Added to cart 17 times recently |
| Availability: |
In stock - Ready to Ship
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| Condition: | |
| GTIN: | 821455286517  |
| Warranty: |
|
| List Price: |
$47,444.45 |
| Price: |
$9,488.90 80% off |
Business price:
Enroll your business for free
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Exclusive Bulk Discounts tailored to your order size
Priority Processing with a dedicated account manager
Fast Response: Get your custom quote within 5-10 minutes during business hours (Mon-Fri, 6:00 AM – 6:00 PM PST)
Holiday Bonus: Submissions on holidays receive priority handling the next business day
Shipping:
Payment:
Shipping as per your need
Same-day Shipping
Express Delivery Across the USA
Need it fast? Choose Express Shipping and receive your order within 1–3 business days.
Free Ground Shipping Available
Standard ground delivery across the U.S. takes 2–6 days, depending on your location — no extra charge.
International Shipments Made Simple
For all international orders, we ship via your UPS, FedEx, or DHL account — or to your U.S.-based freight forwarder.
Delivery Timelines
Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
QSFP-40G-ER4=
QSFP 40GBASE-ER4 TRANSCEIVER MODULE LC 40KM
$47,444.45
$9,488.90
6 in Global Warehouse
$9,488.90
80% off
TRUSTED, TRIED, PROVEN
$5,000,000+ Inventory Delivered By
Officially Accredited & Verified By
Next-Gen IT Solutions Powered By
QSFP-40G-ER4= Overview
QSFP-40G-ER4= is a QSFP optical transceiver module engineered to deliver 40G data rate performance over single-mode fiber using LC duplex connectors. Designed for extended-range applications, this module supports Ethernet protocols and is ideally suited for high-performance data centers, enterprise networks, and telecom environments.
QSFP-40G-ER4= features a compact QSFP form factor with dimensions that meet industry standards, ensuring easy integration into diverse networking platforms. Its robust design, compliance with operating and storage temperature requirements, and compatibility with leading network vendors make it a reliable choice for extended-reach connectivity solutions.
What is the price of QSFP-40G-ER4=?
Lowest price of QSFP-40G-ER4= is $ 9,488.90. Shop now discounts with bulk quotation for QSFP-40G-ER4=
Explore more options from Transceivers or Cisco products.
QSFP-40G-ER4= Specifications
| Product Type | Transceiver |
| Form Factor | QSFP |
| Data Rate | 40G |
| Connector Type | LC Duplex |
| Wavelength | 1310 nm |
| Transmission Distance | Extended-Range |
| Fiber Type | Single-mode |
| Max Distance | 40 km |
| Supported Protocols | Ethernet |
| Network Interface | Fiber |
| Power Consumption | 3.5W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista |
| Product Name | QSFP-40G-ER4= |
| Height | 0.55 inches |
| Width | 0.55 inches |
| Depth | 1.65 inches |
| Weight | 0.2 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP | XFP | XFP | SFP+ | CFP |
| Data Rate | 40G | 10G | 10G | 10G | 100G |
| Connector Type | LC Duplex | LC | LC | LC | LC |
| Wavelength | 1310 nm | 1550 nm | 1310 nm | 850 nm | 1550 nm |
| Transmission Distance | Extended-Range | Long-Range | Long-Range | Short-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Multi-mode | Single-mode |
| Max Distance | 40 km | 80 km | 80 km | 300 meters | 80 km |
| Supported Protocols | Ethernet | Ethernet, SONET | Ethernet, Fibre Channel | Ethernet | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber | Ethernet | Fiber | Fiber |
| Power Consumption | 3.5W | 4.0 W | 3.6W | 1.5W | 6W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | QSFP-40G-ER4= | DWDM-XFP-3425-C | EX-XFP-10GE-ZR-1591-C | XBR-000212-C 10G SFP+ Transceiver Module | AA1403013-3190-E6-C CFP Transceiver Module |
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