{"product_id":"40g-qsfp-lr4-transceiver-for-dell-430-4917-407-bbgn-10km","title":"40G QSFP+ LR4 Transceiver for Dell 430-4917\/407-BBGN - 10km","description":"\u003cp\u003eIn this review the QSFPTEK 40G QSFP+ Module LR4 is examined for network engineers and IT teams who need a drop-in compatible 40G optics option for Dell networking gear. The bottom line: it delivers a straightforward, hot-pluggable 40G Ethernet link with four CWDM lanes and built-in monitoring, making it useful for short metro and data center single-mode runs up to 10km. For those replacing failed optics or expanding 40GbE ports without vendor-branded modules, this module represents a pragmatic balance of compatibility and value.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Works as a compatible replacement for Dell (DE) Networking 430-4917\/407-BBGN, easing upgrades or repairs on existing switches and routers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40G Performance:\u003c\/strong\u003e Supports 40GBASE-LR4 over single-mode fiber using four CWDM lanes to deliver high-bandwidth links up to 10km.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLC Duplex Connector:\u003c\/strong\u003e Uses standard Duplex LC cabling for easy integration into typical single-mode patching and trunking infrastructure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDDM Monitoring:\u003c\/strong\u003e Digital Diagnostics Monitoring provides real-time status on optical power and temperature to help troubleshoot and prevent downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e Rated for operation from 0C to +70C with Tx power and Rx sensitivity metrics suitable for data center and campus fiber links.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play:\u003c\/strong\u003e Hot-pluggable QSFP+ form factor and compliance with SFF-8436 and QSFP MSA mean simple installation without special configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe module is best for IT administrators, network technicians, and systems integrators who need a cost-effective, compatible 40G LR4 transceiver for Dell networking equipment or any device that accepts QSFP+ LR4 optics. It is particularly suitable for data center spine-leaf links, short metro spans, or aggregation links where single-mode fiber and LC connectors are already deployed.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include operators requiring extended temperature ranges below 0C, proprietary vendor-locked optics firmware, or specialized service-level guarantees; in those cases, purchasing directly from the original network vendor or a certified partner may be preferable.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with Dell 430-4917\/407-BBGN and other QSFP+ ports for flexible replacement or expansion.\u003c\/li\u003e\n\u003cli\u003eSupports 40GBASE-LR4 with four CWDM lanes for reliable 40GbE over single-mode fiber up to 10km.\u003c\/li\u003e\n\u003cli\u003eDDM support and hot-pluggable design simplify monitoring and maintenance without downtime.\u003c\/li\u003e\n\u003cli\u003eEach module is individually tested before shipping, helping ensure plug-and-play reliability out of the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWorking temperature begins at 0C, so it may not suit outdoor enclosures or extreme cold environments.\u003c\/li\u003e\n\u003cli\u003eNot a vendor-branded original part, which may be a concern for organizations requiring manufacturer-certified optics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e40G QSFP+ LR4 Single-Mode Transceiver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eDell (DE) Networking 430-4917 \/ 407-BBGN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelengths\u003c\/td\u003e\n\u003ctd\u003e4 CWDM lanes: 1270nm, 1290nm, 1310nm, 1330nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eDuplex LC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 10 km on single-mode fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0C to +70C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTx Power \/ Rx Sensitivity\u003c\/td\u003e\n\u003ctd\u003eTx: -7 to +2.3 dBm, Rx sensitivity \u0026lt; -13.7 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor teams needing a reliable, plug-and-play 40G LR4 transceiver compatible with Dell networking gear, this QSFPTEK module is a practical, well-tested option that covers common data center and short metro needs. It offers DDM diagnostics, standard LC connectivity, and 10km reach at a price-performance point that makes sense for replacements and network growth, though users with extreme environmental needs or strict vendor sourcing policies should evaluate alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this module work in Dell switches that list the 430-4917 part?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed as a compatible replacement for Dell (DE) Networking 430-4917\/407-BBGN and should operate in QSFP+ ports that accept LR4 optics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module provide optical diagnostics?\u003c\/strong\u003e\u003cbr\u003eYes, it supports Digital Diagnostics Monitoring (DDM) so you can monitor parameters like optical power and temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow far can it transmit?\u003c\/strong\u003e\u003cbr\u003eIt supports single-mode fiber links up to 10 km using four CWDM lanes at the specified wavelengths.\u003c\/p\u003e","brand":"QSFPTEK","offers":[{"title":"Default Title","offer_id":48198577881307,"sku":"B07Y15CD2B","price":120.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Lh4OCTRgS._AC_SL1500.jpg?v=1770302645","url":"https:\/\/gearmusthave.com\/products\/40g-qsfp-lr4-transceiver-for-dell-430-4917-407-bbgn-10km","provider":"GearMustHave","version":"1.0","type":"link"}