{"product_id":"cisco-catalyst-ws-c3850-48xs-f-s-48-port-10g-sfp-switch-4x-40g-qsfp-ip-base-back-to-front-airflow-refurbished-tested","title":"Cisco Catalyst WS-C3850-48XS-F-S 48-Port 10G SFP+ Switch 4x 40G QSFP+ IP Base Back-to-Front Airflow - Refurbished\/Tested","description":"\u003cp\u003eCondition: Refurbished\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eCisco Catalyst WS-C3850-48XS-F-S\u003c\/strong\u003e is a 1RU, 48-port 10 Gigabit SFP+ fiber switch with four fixed 40G QSFP+ uplinks, running the IP Base feature set. The \"-F\" denotes \u003cstrong\u003eback-to-front airflow\u003c\/strong\u003e (FAN-T3-F fan modules and PWR-C3-750WAC-F power supply), which suits racks where the switch's port side faces the hot aisle. It is a cost-effective choice for 10G aggregation, top-of-rack, and campus distribution. In stock at Resilient Tec for \u003cstrong\u003e$1,450\u003c\/strong\u003e, with free US shipping and a lifetime warranty.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eCisco WS-C3850-48XS-F-S switch with 3 × FAN-T3-F fan modules\u003c\/li\u003e\n\u003cli\u003e1 × PWR-C3-750WAC-F 750W AC back-to-front power supply (second PSU bay open for redundancy)\u003c\/li\u003e\n\u003cli\u003eRack mount kit, console cable, and power cord\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Features and Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorts\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e48 × 1\/10 Gigabit Ethernet SFP+ ports\u003c\/li\u003e\n\u003cli\u003e4 × 40 Gigabit Ethernet QSFP+ uplink ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitching Capacity\u003c\/strong\u003e: 1,280 Gbps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoftware Image\u003c\/strong\u003e: IP Base feature set (Layer 2 switching plus basic Layer 3 routing) on Cisco IOS XE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoftware State\u003c\/strong\u003e: Reset to factory default, standard IOS XE image loaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStacking\u003c\/strong\u003e: Cisco StackWise-480 (stack cables sold separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirflow\u003c\/strong\u003e: Back-to-front (-F). Fans and power supplies are not interchangeable with front-to-back WS-C3850-48XS-S parts; match airflow across the switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply\u003c\/strong\u003e: 2 × hot-swappable PSU bays, 1 × PWR-C3-750WAC-F installed. Add a second PWR-C3-750WAC-F for redundancy (do not mix with -R models)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling\u003c\/strong\u003e: 3 × hot-swappable FAN-T3-F fan modules\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Dimensions\u003c\/strong\u003e: 1.75\" H × 17.5\" W × 20.1\" D (1 RU rack-mountable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTesting\u003c\/strong\u003e: Powered on and port-tested before shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eLifecycle Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eCisco's Last Date of Support for the Catalyst 3850 fiber models is April 30, 2027, and Cisco is no longer accepting new SmartNet contracts or renewals for them. Resilient Tec's lifetime warranty covers this switch beyond that date, with advance replacement when in stock.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWhat is the difference between WS-C3850-48XS-F-S and WS-C3850-48XS-S?\u003c\/strong\u003e\u003cbr\u003eAirflow direction. The -F-S model uses back-to-front cooling (FAN-T3-F fans, PWR-C3-750WAC-F power supplies); the 48XS-S uses front-to-back (FAN-T3-R fans, PWR-C3-750WAC-R power supplies). Match the model to your rack's hot-aisle\/cold-aisle layout.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eCan I get Cisco SmartNet on this switch?\u003c\/strong\u003e\u003cbr\u003eNo. Cisco's final service contract renewal date for these models was July 29, 2026. Resilient Tec's lifetime warranty takes the place of SmartNet coverage.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWhat is the newer Cisco equivalent?\u003c\/strong\u003e\u003cbr\u003eCisco lists the Catalyst C9500-48Y4C as the migration path for the 3850-48XS.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eHow much does the WS-C3850-48XS-F-S cost at Resilient Tec?\u003c\/strong\u003e\u003cbr\u003e$1,450 per unit, refurbished and tested, with free US shipping and a lifetime warranty.\u003c\/p\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":67668292042852,"sku":"WS-C3850-48XS-F-S-R","price":1450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/Screenshot2026-10-08170738.png?v=1791493716","url":"https:\/\/resilient-tec.com\/products\/cisco-catalyst-ws-c3850-48xs-f-s-48-port-10g-sfp-switch-4x-40g-qsfp-ip-base-back-to-front-airflow-refurbished-tested","provider":"Resilient Tec","version":"1.0","type":"link"}