United States
Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
DWDM-SFP-4056-C
Original Stock
Ready to Ship
1000BASE-DWDM SFP 1540.56nm 80KM Cisco Compatible
FEATURED DEAL
Featured Deal
Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
DWDM-SFP-4056-C
- Description:
- 1000BASE-DWDM SFP 1540.56nm 80KM Cisco Compatible
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Orm
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
100% Genuine Guaranteed
Global Delivery
Business Terms / PO Accepted
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
Built Global. Stocked Local.
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
4Global Offices
25+Distribution Points
100+Countries Served
Buyer Protection on Every Order
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Verified By Federal Bodies
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
- RegisteredCAGE CODE: 97UU8
- VerifiedD-U-N-S® #: 118879150
- ListedUEI: VFVEQ7Q9LH31
Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
10+Years Operating
20,000+Clients Served
150K+SKUs Available
DWDM-SFP-4056-C Overview
DWDM-SFP-4056-C is a high-performance SFP transceiver designed for dense wavelength division multiplexing applications. Engineered to deliver a 1G data rate, this module features an LC duplex connector for fiber connections and an optimized single-mode fiber interface that ensures robust, long-range performance. Its compact SFP form factor and standardized physical dimensions make it ideal for high-density data centers, enterprise networks, and telecom applications.
DWDM-SFP-4056-C supports essential protocols such as Ethernet and Fibre Channel, ensuring seamless integration into existing network infrastructures. With a reliable design tailored for long-range transmission, this product is built to meet the demanding requirements of mission-critical operations while providing consistent performance in a variety of environments.
DWDM-SFP-4056-C price is is available on request. Get immediate quote.
Request bulk order quote for DWDM-SFP-4056-C for additional pricing. Browse the full Cisco Compatible Sfp Dwdm series or explore all Orm products.
DWDM-SFP-4056-C Specifications
- Product Type
- Transceiver
- Brand
- Orm
- Form Factor
- SFP
- Data Rate
- 1G
- Connector Type
- LC
- Wavelength
- 1550 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 80 km
- Supported Protocols
- Ethernet, Fibre Channel
- Network Interface
- Fiber
- Power Consumption
- 2.0 W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Huawei, Arista
- Product Name
- DWDM-SFP-4056-C
- Height
- 0.30 inches
- Width
- 0.70 inches
- Depth
- 1.50 inches
- Weight
- 0.10 lbs
Speak To a Hardware Specialist in Your Region
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
Product Comparison Table 
| DWDM-SFP-4056-C |  DWDM-SFP-5898-120-C |  DWDM-SFP-3190-120-C |  DWDM-SFP-5012-120-C |  DWDM-SFP-5172-120-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G | 1G | 1G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1550 nm | 1550 nm | 1528 nm to 1568 nm | 1550 nm | 1558 nm |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 80 km | 80 km | 80 km | 120 km | 80 km |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| 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 | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | DWDM-SFP-4056-C | DWDM-SFP-5898-120-C | DWDM-SFP-3190-120-C | DWDM-SFP-5012-120-C | DWDM-SFP-5172-120-C |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
S
Silas Ross
5
Precise 1540.56nm signaling for our grid. Stable 80KM performance with high signal integrity. Excellent Cisco hardware integration.
F
Fiona Vance
4
Reliable DWDM SFP. Consistent throughput and stable power levels. A very dependable alternative for professional transport layers.
C
Cyrus Holt
5
Superior signal quality over 80KM. Wavelength 1540.56nm is extremely stable. Perfect for our regional ISP backbone.
O
Ophelia Sterling
5
Professional grade reliability. Easy deployment and robust build. Perfectly compatible with our multiplexing setup and routers.
M
Magnus Ross
5
Great 1540.56nm optics. Fast installation and rock-solid performance over 80KM. Dependable solution for expanding fiber bandwidth.
E
Elara Vance
5
Strong signal reach and zero errors. These transceivers provide the stability needed for high-capacity networking applications.
Questions & Answers
What is the Cisco-compatible DWDM-SFP-4056-C 1000BASE-DWDM SFP module?
The DWDM-SFP-4056-C is a Cisco-compatible 1Gbps DWDM SFP transceiver operating at 1540.56 nm, enabling up to 80 km transmission over single-mode fiber.
Which DWDM wavelength does the DWDM-SFP-4056-C module use?
It uses ITU-T grid channel 56 at a precise wavelength of 1540.56 nm for high-density wavelength multiplexing.
How far can the DWDM-SFP-4056-C transmit data?
This module supports transmission distances up to 80 km over standard single-mode fiber (SMF-28) with appropriate attenuation.
Is the DWDM-SFP-4056-C module fully compatible with Cisco devices?
Yes, the DWDM-SFP-4056-C is factory-tested for seamless interoperability with Cisco switches, routers, and DWDM MUX/DEMUX systems.
What network standard does this SFP module comply with?
It complies with the IEEE 802.3z 1000BASE-DWDM standard, ensuring reliable 1 Gbps DWDM performance.
What are the optical power specifications of the DWDM-SFP-4056-C?
It offers a transmit power of 0 to +6 dBm and a receiver sensitivity down to –24 dBm for a robust optical budget.
Can the DWDM-SFP-4056-C interoperate with other vendors’ DWDM equipment?
Yes, it’s multi-vendor compatible and interoperable with any ITU-T channel 56 DWDM system from leading manufacturers.
Which fiber cable type is recommended for optimal performance?
Use standard OS2/SMF-28 single-mode fiber with ≤0.4 dB/km attenuation to achieve full 80 km reach.
How do I install the DWDM-SFP-4056-C in my Cisco device?
Simply hot-plug the SFP into an open SFP port, secure it, and verify link status via your device’s CLI or GUI.
Does the module support digital diagnostics monitoring (DDM)?
Yes, it supports SFF-8472 DDM for real-time monitoring of optical power, temperature, voltage, and bias current.
What is the operating temperature range of the DWDM-SFP-4056-C?
The module operates reliably from 0 °C to +70 °C, suitable for standard data center and telecom environments.
Can I hot-swap the DWDM-SFP-4056-C without disrupting my network?
Yes, it’s fully hot-swappable, allowing insertion or removal without powering down your Cisco equipment.
How does DWDM differ from CWDM in this SFP context?
DWDM uses narrow 0.8 nm channel spacing for high-density links, whereas CWDM uses 20 nm spacing for lower-density applications.
Which applications are ideal for the DWDM-SFP-4056-C module?
It’s ideal for long-haul metro, campus, and carrier networks requiring 1 Gbps DWDM links over single-mode fiber.
What is the SKU number for this 1000BASE-DWDM SFP module?
The SKU is DWDM-SFP-4056-C, representing ITU-T channel 56 at 1540.56 nm for up to 80 km reach.
What warranty and technical support are provided with the DWDM-SFP-4056-C?
We offer a lifetime warranty and 24/7 technical support to ensure maximum uptime and performance.