{"v":"2.0","page_type":"product","title":"StarTech.com Cisco QSFP-40G-SR4-S Compatible QSFP+ Module - 40GBASE-SR4 40GE Gigabit Ethernet 40GbE Multimode Fiber MMF Optic Transceiver","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"STARTECH.COM","href":"/python/html6/menu_brand_products/1000/142000/menu_brand_products_StarTechcom_1_1aa1ea0ea9.html"},{"label":"QSFP-40G-SR4-S-ST","href":null}],"content":{"product":{"mpn":"QSFP-40G-SR4-S-ST","manufacturer":"STARTECH.COM","brand":"STARTECH.COM","brand_url":"/python/html6/menu_brand_products/1000/142000/menu_brand_products_StarTechcom_1_1aa1ea0ea9.html","title":"StarTech.com Cisco QSFP-40G-SR4-S Compatible QSFP+ Module - 40GBASE-SR4 40GE Gigabit Ethernet 40GbE Multimode Fiber MMF Optic Transceiver","description":"","attributes":[{"name":"Brand name","values":[{"value":"STARTECH.COM","url":"/python/html6/menu_attr_pair/1000/53000000/53567000/menu_attr_pair_Brandname_STARTECHCOM_1_af1a2264cd.html"}],"name_url":"/python/html6/menu_attr_pair/1000/53000000/53567000/menu_attr_pair_Brandname_STARTECHCOM_1_af1a2264cd.html"},{"name":"Manufacturer name","values":[{"value":"STARTECH.COM","url":"/python/html6/menu_attr_pair/1000/102000000/102309000/menu_attr_pair_Manufacturername_STARTECHCOM_1_03cecd1c09.html"}],"name_url":"/python/html6/menu_attr_pair/1000/102000000/102309000/menu_attr_pair_Manufacturername_STARTECHCOM_1_03cecd1c09.html"},{"name":"Manufacturer","values":[{"value":"STARTECH.COM","url":"/python/html6/menu_attr_pair/1000/20000000/20911000/menu_attr_pair_Manufacturer_STARTECHCOM_1_47c5339577.html"}],"name_url":"/python/html6/menu_attr_pair/1000/20000000/20911000/menu_attr_pair_Manufacturer_STARTECHCOM_1_47c5339577.html"},{"name":"Extra Product Name","values":[{"value":"StarTech.com Cisco QSFP-40G-SR4-S Compatible QSFP+ Module - 40GBASE-SR4 40GE Gigabit Ethernet 40GbE Multimode Fiber MMF Optic Transceiver","url":"/python/html6/menu_attr_pair/1000/238000000/238043000/menu_attr_pair_ExtraProductName_StarTechcomCiscoQSFP40GSR4SCompatibleQSFPM_1_5bf128690d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/238000000/238043000/menu_attr_pair_ExtraProductName_StarTechcomCiscoQSFP40GSR4SCompatibleQSFPM_1_5bf128690d.html"},{"name":"Weight","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/168000000/168176000/menu_attr_pair_Weight_1_1_ed6e812c17.html"}],"name_url":"/python/html6/menu_attr_pair/1000/168000000/168176000/menu_attr_pair_Weight_1_1_ed6e812c17.html"},{"name":"WeightUnit","values":[{"value":"lbs","url":"/python/html6/menu_attr_pair/1000/60000000/60642000/menu_attr_pair_WeightUnit_lbs_1_dce479c2aa.html"}],"name_url":"/python/html6/menu_attr_pair/1000/60000000/60642000/menu_attr_pair_WeightUnit_lbs_1_dce479c2aa.html"},{"name":"countryOfOrigin","values":[{"value":"China","url":"/python/html6/menu_attr_pair/1000/183000000/183092000/menu_attr_pair_countryOfOrigin_China_1_ae0adc90ef.html"}],"name_url":"/python/html6/menu_attr_pair/1000/183000000/183092000/menu_attr_pair_countryOfOrigin_China_1_ae0adc90ef.html"},{"name":"moq","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"}],"name_url":"/python/html6/menu_attr_pair/1000/164000000/164262000/menu_attr_pair_moq_1_1_29ca727a89.html"},{"name":"MPN","values":[{"value":"QSFP-40G-SR4-S-ST","url":"/python/html6/menu_attr_pair/1000/126000000/126303000/menu_attr_pair_MPN_QSFP40GSR4SST_1_60b3d0910b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/126000000/126303000/menu_attr_pair_MPN_QSFP40GSR4SST_1_60b3d0910b.html"},{"name":"multiple","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/257000000/257999000/menu_attr_pair_multiple_1_1_2f60c1bab8.html"},{"name":"qtyInStock","values":[{"value":"In Stock","url":"/python/html6/menu_attr_pair/1000/1000000/1581000/menu_attr_pair_qtyInStock_InStock_1_6b9de0410d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/1000000/1581000/menu_attr_pair_qtyInStock_InStock_1_6b9de0410d.html"},{"name":"SKU","values":[{"value":"7AG223","url":"/python/html6/menu_attr_pair/1000/120000000/120503000/menu_attr_pair_SKU_7AG223_1_4d9ef4b0b1.html"}],"name_url":"/python/html6/menu_attr_pair/1000/120000000/120503000/menu_attr_pair_SKU_7AG223_1_4d9ef4b0b1.html"},{"name":"tierMinQty1","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/226000000/226987000/menu_attr_pair_tierMinQty1_1_1_974840705d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/226000000/226987000/menu_attr_pair_tierMinQty1_1_1_974840705d.html"},{"name":"tierPrice1","values":[{"value":"228.83","url":"/python/html6/menu_attr_pair/1000/253000000/253298000/menu_attr_pair_tierPrice1_22883_1_717ff3efa5.html"}],"name_url":"/python/html6/menu_attr_pair/1000/253000000/253298000/menu_attr_pair_tierPrice1_22883_1_717ff3efa5.html"},{"name":"Manufacturer Part Number","values":[{"value":"QSFP-40G-SR4-S-ST","url":"/python/html6/menu_attr_pair/1000/197000000/197459000/menu_attr_pair_ManufacturerPartNumber_QSFP40GSR4SST_1_d586c6c9db.html"}],"name_url":"/python/html6/menu_attr_pair/1000/197000000/197459000/menu_attr_pair_ManufacturerPartNumber_QSFP40GSR4SST_1_d586c6c9db.html"},{"name":"Manufacturer Website Address","values":[{"value":"http://www.startech.com","url":"/python/html6/menu_attr_pair/1000/231000000/231334000/menu_attr_pair_ManufacturerWebsiteAddress_httpwwwstartechcom_1_6448b64a76.html"}],"name_url":"/python/html6/menu_attr_pair/1000/231000000/231334000/menu_attr_pair_ManufacturerWebsiteAddress_httpwwwstartechcom_1_6448b64a76.html"},{"name":"Brand Name","values":[{"value":"StarTech.com","url":"/python/html6/menu_attr_pair/1000/53000000/53567000/menu_attr_pair_BrandName_StarTechcom_1_30dd34fba4.html"}],"name_url":"/python/html6/menu_attr_pair/1000/53000000/53567000/menu_attr_pair_BrandName_StarTechcom_1_30dd34fba4.html"},{"name":"Product Name","values":[{"value":"Cisco QSFP+ Module","url":"/python/html6/menu_attr_pair/1000/21000000/21051000/menu_attr_pair_ProductName_CiscoQSFPModule_1_a8729a91d3.html"}],"name_url":"/python/html6/menu_attr_pair/1000/21000000/21051000/menu_attr_pair_ProductName_CiscoQSFPModule_1_a8729a91d3.html"},{"name":"Product Type","values":[{"value":"QSFP+","url":"/python/html6/menu_attr_pair/1000/236000000/236843000/menu_attr_pair_ProductType_QSFP_1_36e92cfecf.html"}],"name_url":"/python/html6/menu_attr_pair/1000/236000000/236843000/menu_attr_pair_ProductType_QSFP_1_36e92cfecf.html"},{"name":"Application/Usage","values":[{"value":"Optical Network, Data Networking","url":"/python/html6/menu_attr_pair/1000/224000000/224609000/menu_attr_pair_ApplicationUsage_OpticalNetworkDataNetworking_1_85da4f4b8c.html"}],"name_url":"/python/html6/menu_attr_pair/1000/224000000/224609000/menu_attr_pair_ApplicationUsage_OpticalNetworkDataNetworking_1_85da4f4b8c.html"},{"name":"Total Number of Ports","values":[{"value":"1","url":"/python/html6/menu_attr_pair/1000/95000000/95284000/menu_attr_pair_TotalNumberofPorts_1_1_7bc035a5a9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/95000000/95284000/menu_attr_pair_TotalNumberofPorts_1_1_7bc035a5a9.html"},{"name":"Connector Type","values":[{"value":"MPO","url":"/python/html6/menu_attr_pair/1000/72000000/72441000/menu_attr_pair_ConnectorType_MPO_1_65e9f75be6.html"}],"name_url":"/python/html6/menu_attr_pair/1000/72000000/72441000/menu_attr_pair_ConnectorType_MPO_1_65e9f75be6.html"},{"name":"Interfaces/Ports Details","values":[{"value":"1 x MPO 40GBase-SR4 Network","url":"/python/html6/menu_attr_pair/1000/143000000/143849000/menu_attr_pair_InterfacesPortsDetails_1xMPO40GBaseSR4Network_1_1ad4d16b48.html"}],"name_url":"/python/html6/menu_attr_pair/1000/143000000/143849000/menu_attr_pair_InterfacesPortsDetails_1xMPO40GBaseSR4Network_1_1ad4d16b48.html"},{"name":"Media Type Supported","values":[{"value":"Optical Fiber","url":"/python/html6/menu_attr_pair/1000/76000000/76660000/menu_attr_pair_MediaTypeSupported_OpticalFiber_1_71ecacd2d7.html"}],"name_url":"/python/html6/menu_attr_pair/1000/76000000/76660000/menu_attr_pair_MediaTypeSupported_OpticalFiber_1_71ecacd2d7.html"},{"name":"Fiber Mode Supported","values":[{"value":"Multi-mode","url":"/python/html6/menu_attr_pair/1000/121000000/121984000/menu_attr_pair_FiberModeSupported_Multimode_1_a5ef8c99ff.html"}],"name_url":"/python/html6/menu_attr_pair/1000/121000000/121984000/menu_attr_pair_FiberModeSupported_Multimode_1_a5ef8c99ff.html"},{"name":"Ethernet Technology","values":[{"value":"40 Gigabit Ethernet","url":"/python/html6/menu_attr_pair/1000/75000000/75245000/menu_attr_pair_EthernetTechnology_40GigabitEthernet_1_838826614f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/75000000/75245000/menu_attr_pair_EthernetTechnology_40GigabitEthernet_1_838826614f.html"},{"name":"Network Technology","values":[{"value":"40GBase-SR4","url":"/python/html6/menu_attr_pair/1000/251000000/251825000/menu_attr_pair_NetworkTechnology_40GBaseSR4_1_b1f66e8f22.html"}],"name_url":"/python/html6/menu_attr_pair/1000/251000000/251825000/menu_attr_pair_NetworkTechnology_40GBaseSR4_1_b1f66e8f22.html"},{"name":"Compatibility","values":[{"value":"MSA Compliant","url":"/python/html6/menu_attr_pair/1000/168000000/168373000/menu_attr_pair_Compatibility_MSACompliant_1_bc0fb5ce4d.html"}],"name_url":"/python/html6/menu_attr_pair/1000/168000000/168373000/menu_attr_pair_Compatibility_MSACompliant_1_bc0fb5ce4d.html"},{"name":"Environmentally Friendly","values":[{"value":"Yes","url":"/python/html6/menu_attr_pair/1000/189000000/189260000/menu_attr_pair_EnvironmentallyFriendly_Yes_1_93f9d9a3be.html"}],"name_url":"/python/html6/menu_attr_pair/1000/189000000/189260000/menu_attr_pair_EnvironmentallyFriendly_Yes_1_93f9d9a3be.html"},{"name":"Environmental Certification","values":[{"value":"RoHS, REACH, WEEE","url":"/python/html6/menu_attr_pair/1000/243000000/243375000/menu_attr_pair_EnvironmentalCertification_RoHSREACHWEEE_1_1f8be0e084.html"}],"name_url":"/python/html6/menu_attr_pair/1000/243000000/243375000/menu_attr_pair_EnvironmentalCertification_RoHSREACHWEEE_1_1f8be0e084.html"},{"name":"Country of Origin","values":[{"value":"China","url":"/python/html6/menu_attr_pair/1000/59000000/59441000/menu_attr_pair_CountryofOrigin_China_1_8e2a0a3f06.html"}],"name_url":"/python/html6/menu_attr_pair/1000/59000000/59441000/menu_attr_pair_CountryofOrigin_China_1_8e2a0a3f06.html"},{"name":"Limited Warranty","values":[{"value":"Lifetime","url":"/python/html6/menu_attr_pair/1000/114000000/114240000/menu_attr_pair_LimitedWarranty_Lifetime_1_00c2473951.html"}],"name_url":"/python/html6/menu_attr_pair/1000/114000000/114240000/menu_attr_pair_LimitedWarranty_Lifetime_1_00c2473951.html"}],"images":[],"distributors":[{"name":"PCNation","sku":"7AG223","url":"https://www.pcnation.com/web/details/7AG223/startech-com-cisco-qsfp-40g-sr4-s-compatible-qsfp-plus-module-40gbase-sr4-fiber-optical-transceiver-qsfp-40g-sr4-s-st-qsfp-40g-sr4-s-st-00065030886369","pricing":[{"quantity":1,"price_usd":228.83}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://content.etilize.com/Bottom/1061183057.jpg"},{"name":"Allied Electronics","sku":"72014965","url":"https://www.alliedelec.com/product/startech-com/qsfp-40g-sr4-s-st/72014965/","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Zoro","sku":"G2977164","url":"https://www.zoro.com/startechcom-qsfp-40g-sr4-s-qsfp-plus-mm-qsfp-40g-sr4-s-st/i/G2977164/","pricing":[{"quantity":1,"price_usd":233.12}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/1312d194-8a97-4385-a84f-21ce86b2a3d1"},{"name":"Grand and Toy","sku":"QSFP-40G-SR4-S-ST","url":"https://www.grandandtoy.com/en/product/SY6459926_StarTech_com_Cisco_QSFP-40G-SR4-S_Compatible_QSFP_Module%2c_40GBASE-SR4%2c_40GbE_Multimode_Fiber_MMF_Optic_Transceiver%2c_40GE_Gigabit_Ethernet_QSFP_MPO_100.aspx","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.grandandtoy.com/graphics/jh/cD7/E6/D7E6F6D9-B3BE-4871-9B52-E858D4F215F1.jpg"},{"name":"Zoro","sku":"G7821794","url":"https://www.zoro.com/startechcom-cisco-qsfp-40g-sr4-s-compatible-qsfp-40gbase-sr4-mpo-qsfp-40g-sr4-s-st/i/G7821794/","pricing":[{"quantity":1,"price_usd":239.29}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.zoro.com/static/cms/product/full/AB Distributing Inc_QSFP40GESR4E.Main.jpg"},{"name":"Consutronix","sku":"7AG223","url":"https://www.consutronix.com/7AG223.html","pricing":[{"quantity":1,"price_usd":244.46}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://content.etilize.com/160/1061183057.jpg"},{"name":"unbeatablesale.com","sku":"SYBA165790","url":"https://www.unbeatablesale.com/syba165790.html","pricing":[{"quantity":1,"price_usd":247.18}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://site.unbeatablesale.com/SYBA165790.JPG"},{"name":"barcodesinc.com","sku":"QSFP-40G-SR4-S-ST","url":"https://www.barcodesinc.com/startech/part-qsfp-40g-sr4-s-st.htm","pricing":[{"quantity":1,"price_usd":298.91}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"homeessentialsdirect.com","sku":"QSFP-40G-SR4-S-ST","url":"https://www.homeessentialsdirect.com/startech-com-qsfp-40g-sr4-s-st-cisco-qsfp-40g-sr4-s-compatible-qsfp-40gbase-sr4-40-gbps-40gbe-module-40g/","pricing":[{"quantity":1,"price_usd":261.8}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://cdn11.bigcommerce.com/s-gcx1wi/products/2515756/images/2093657/apiibu6ha__69362.1626345302.300.250.jpg?c=2"},{"name":"us.rs-online.com","sku":"72014965","url":"https://us.rs-online.com/product/startech-com/qsfp-40g-sr4-s-st/72014965/","pricing":[{"quantity":1,"price_usd":459.69}],"stock":{"available":true,"quantity":5,"lead_time_days":0},"moq":1,"multiple":1}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-17","last_updated":"2026-09-17","data_sources":["Allied Electronics","Consutronix","Grand and Toy","PCNation","Zoro","barcodesinc.com","homeessentialsdirect.com","unbeatablesale.com","us.rs-online.com"],"completeness":0.85,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}