Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
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:
2 In stock - Ready to Ship
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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:
SFP-10G-BX-D40-C
10GBASE-BXD SFP+ Module SMF 40KM Cisco Compatible
Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Built Global. Stocked Local.
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
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.

Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
SFP-10G-BX-D40-C is a high-performance SFP+ transceiver module that supports 10G data rates and is designed for extended-range applications over single-mode fiber. It features LC connectors and utilizes bidirectional transmission techniques to achieve up to 40 km reach, making it ideal for inter-building connectivity, metro networks, and long-haul telecommunications.
SFP-10G-BX-D40-C is optimized for Ethernet networks and is built in a compact SFP form factor that fits into standard hot-pluggable network equipment. Its robust design and precise engineering make it a reliable choice for data center interconnects, enterprise backbones, and carrier-grade applications where high bandwidth and extended reach are required.
SFP-10G-BX-D40-C price is is available on request. Get immediate quote.
Request bulk order quote for SFP-10G-BX-D40-C for additional pricing. Browse the full Cisco Compatible Sfp+ series or explore all Orm products.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | SFP | SFP | SFP+ | SFP+ |
| Data Rate | 10G | 10G | 10G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1550 nm | 1310 nm / 1490 nm | 1550 ±3 nm | 1550 nm | 850 nm |
| Transmission Distance | Extended-Range | Long-Range | Extended-Range | Extended-Range | Short-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Multi-mode |
| Max Distance | 40 km | 40 km | 80 km | 80 km | 300 m (OM3) / 400 m (OM4) |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | 10G Ethernet |
| Network Interface | Ethernet | Fiber | Fiber | Fiber | Ethernet |
| 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 |
| Product Name | SFP-10G-BX-D40-C | SFP-10G-BX40D-I-C | DWDM-SFP10G-4214-ER-C | DWDM-SFP10G-3661-ER-C | SFP-10G-SR-X-C |
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.
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.
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.
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.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Impressive 40km BiDi reach. Strong signal levels over single fiber. Perfect for inter-city 10G transport and backbone.
Reliable downstream 40km signaling. Our Cisco gear identified these instantly. High uptime and robust signal integrity.
Professional long-range BiDi. Stable 10G throughput and wavelength precision. Excellent choice for expanding regional network capacity.
Consistent performance at 40km. These modules provide a clean signal and zero packet loss. Very trustworthy optics.
Top-tier 40km optics. Performance is rock-solid and installation was seamless. Great value for high-capacity long-distance links.
Exceptional power margins for 40km spans. Reliable and robust build quality. Perfect for single-strand regional transport.
The SFP-10G-BX-D40-C is a Cisco-compatible 10GBASE-BX-D SFP+ transceiver designed for single-mode fiber (SMF) links up to 40 km.
Yes. The SFP-10G-BX-D40-C is fully Cisco-compatible and interoperable with all major Cisco Catalyst and Nexus series switches supporting 10G SFP+ ports.
This module supports single-mode fiber transmission up to 40 km (25 miles) at 9.95–10.3 Gbps.
The module uses standard single-mode fiber (SMF, ITU-G.652) for long-reach 10 Gigabit Ethernet links.
It transmits at 1271 nm (downstream) and receives at 1331 nm (upstream) for bi-directional communication over one SMF strand.
It is housed in a hot-pluggable SFP+ (Small Form-Factor Pluggable Plus) module, measuring 13.4 × 8.5 × 56.5 mm.
Yes. It supports SFF-8472 DOM for real-time monitoring of optical power, temperature, voltage, and laser bias current.
The module consumes less than 1W (typical 0.75W), ensuring energy-efficient 10 Gbps performance.
It operates reliably from 0 °C to 70 °C (standard commercial) or –40 °C to 85 °C (industrial) depending on the model variant.
Simply insert the module into a compatible SFP+ port until it latches, then connect SMF patch cords—no drivers required.
Yes. Its bidirectional (BiDi) design uses two wavelengths on a single SMF strand, reducing fiber cabling needs.
The SFP-10G-BX-D40-C has an MTBF exceeding 1 million hours, guaranteeing high reliability in enterprise networks.
Yes. It supports hot-plug insertion and removal without powering down the host system.
Check DOM readings for optical power, verify correct wavelength orientation, inspect fiber cleanliness, and confirm port settings.
This module includes a lifetime replacement warranty and lifetime technical support when purchased from authorized distributors.