{"product_id":"ipolex-qsa-adapter-100g-qsfp28-to-25g-sfp28-cost-effective","title":"ipolex QSA Adapter 100G QSFP28 to 25G SFP28 - Cost-Effective","description":"\u003cp\u003eIn this review of the ipolex QSA Adapter 100G QSFP28 to 25G SFP28, the bottom line is simple: this adapter is for network engineers and IT teams who need a reliable, low-cost way to use SFP28 optics in a QSFP28 slot. The reviewer found that the adapter delivers stable signal conversion with low insertion loss and a solid metal housing, making it a practical choice when migrating ports or reusing existing SFP28 transceivers. It is plug and play and requires no configuration, which makes it useful in lab and production environments where minimizing downtime matters.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Compatibility:\u003c\/strong\u003e Works with QSFP28 MSA-compliant equipment from Dell, Juniper, Arista, Extreme and other vendors so it fits into mixed-brand racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive SFP28 Support:\u003c\/strong\u003e Accepts SFP28 optics and cables including SFP28-SR, SFP28-LR, passive copper and active optical cable types for flexible reach options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-effective Conversion:\u003c\/strong\u003e Lets you run 25G optics from a 100G QSFP28 port, offering a practical migration path without replacing line cards or switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable Performance:\u003c\/strong\u003e Low insertion loss, low crosstalk and low EMI emissions together with an all-metal housing provide dependable signal integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Configuration Required:\u003c\/strong\u003e Plug-and-play operation means the adapter is ready to use out of the box, reducing deployment time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe ipolex QSA Adapter suits network administrators who want to repurpose QSFP28 ports for 25G SFP28 transceivers during incremental upgrades or in lab testing, especially when working with Dell, Juniper, Arista or Extreme gear. It is also useful for small data centers that need cost-effective port flexibility without replacing switch modules.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for environments that require SFP DDM reading from the adapter itself, since this Version A reads DDM from the connected SFP transceiver and the adapter does not include an EEPROM. Users who need adapter-level DDM reporting or specialized firmware support should consider other products.\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\u003eBroad vendor compatibility simplifies deployment in mixed-brand networks.\u003c\/li\u003e\n\u003cli\u003eSupports the full range of SFP28 optic and cable types for flexible link distances.\u003c\/li\u003e\n\u003cli\u003eDurable metal housing and secure latching reduce physical failure risk in racks.\u003c\/li\u003e\n\u003cli\u003ePlug-and-play design keeps installation fast and straightforward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVersion A lacks its own EEPROM, so it does not provide adapter-level DDM; DDM is read from the inserted SFP module.\u003c\/li\u003e\n\u003cli\u003eNot intended for non-MSA or proprietary QSFP implementations where compatibility is not guaranteed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWADQS-28 (QSA-100A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion\u003c\/td\u003e\n\u003ctd\u003eQSFP28 to SFP28 (100G to 25G)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Optics\u003c\/td\u003e\n\u003ctd\u003eSFP28-SR, SFP28-LR, passive copper, active optical cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20C to +85C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40C to +125C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.15 to 3.45V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eAll metal with secure latch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ipolex QSA Adapter 100G QSFP28 to 25G SFP28 is a practical, cost-effective tool for teams needing to reuse SFP28 optics in QSFP28 ports with minimal fuss. Its broad compatibility, stable electrical performance and plug-and-play convenience make it a good value for lab use and staged network upgrades, provided you accept that DDM is handled by the inserted SFP module rather than the adapter.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this adapter work with my Dell or Juniper switch?\u003c\/strong\u003e\u003cbr\u003eThe adapter is designed for QSFP28 MSA-compliant ports and is widely compatible with Dell, Juniper, Arista, Extreme and similar equipment; check your switch supports standard QSFP28 modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the adapter read SFP DDM information?\u003c\/strong\u003e\u003cbr\u003eVersion A does not include an EEPROM; it relies on the connected SFP transceiver for DDM information rather than providing adapter-level DDM.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs any configuration required?\u003c\/strong\u003e\u003cbr\u003eNo configuration is required; the adapter is plug and play and draws DDM data from the inserted SFP module when applicable.\u003c\/p\u003e","brand":"ipolex","offers":[{"title":"Default Title","offer_id":48251760312539,"sku":"B09LYPZTZS","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41nFH27ZLWL._AC_SL1008.jpg?v=1776272268","url":"https:\/\/gearmusthave.com\/products\/ipolex-qsa-adapter-100g-qsfp28-to-25g-sfp28-cost-effective","provider":"GearMustHave","version":"1.0","type":"link"}