{"product_id":"msn2100-cb2f-nvidia-mellanox-sn2100-16-port-100gbe-half-width-switch-onyx-refurbished","title":"NVIDIA Mellanox MSN2100-CB2F SN2100 16x 100GbE QSFP28 Half-Width Spectrum Switch — Onyx, P2C Airflow, Refurbished","description":"\u003cp\u003e\u003cstrong\u003eHalf-width, short-depth 100GbE — two fit side by side in one rack unit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNVIDIA Mellanox MSN2100-CB2F \/ 920-9N100-00F7-0X0 — Spectrum SN2100, 16x 100GbE QSFP28\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e→ \u003cstrong\u003eRails are not part of this SKU.\u003c\/strong\u003e NVIDIA sold the MSN2100-CB2F with the rail kit purchased separately. Tell us whether you are mounting one switch or two side by side and we will quote the right kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMellanox Part Number:\u003c\/strong\u003e MSN2100-CB2F\u003cbr\u003e\u003cstrong\u003eNVIDIA SKU:\u003c\/strong\u003e 920-9N100-00F7-0X0\u003cbr\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e 1U half-width Open Ethernet switch with NVIDIA Onyx (MLNX-OS), 16 QSFP28 100GbE ports, 2 AC PSUs, x86 CPU, short depth, P2C airflow, rail kit purchased separately\u003c\/p\u003e\n\u003cp\u003eThe SN2100 puts 16 ports of 100GbE in a half-width, 20-inch-deep chassis, so two switches can share one rack unit for a redundant pair. NVIDIA positions it for storage and hyperconverged racks where a full 32-port switch is more than the rack needs.\u003c\/p\u003e\n\u003cp\u003eEach port runs 10 to 100GbE. With breakout cables one SN2100 can serve up to 64 25GbE or 10GbE hosts, or 32 50GbE hosts.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhich One Do I Need?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIf you need\u003c\/th\u003e\n\u003cth\u003eLook at\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e16x 100GbE, half width, Onyx, P2C airflow\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eMSN2100-CB2F\u003c\/strong\u003e — this listing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThe same switch with C2P airflow\u003c\/td\u003e\n\u003ctd\u003eMSN2100-CB2R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThe same switch with Cumulus Linux (P2C)\u003c\/td\u003e\n\u003ctd\u003eMSN2100-CB2FC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThe same switch with ONIE (P2C)\u003c\/td\u003e\n\u003ctd\u003eMSN2100-CB2FO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40GbE, not 100GbE\u003c\/td\u003e\n\u003ctd\u003eMSN2100-BB2F — a B in place of the C marks the 40GbE version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32 ports in a full-width 1U, hot-swap PSUs and fans\u003c\/td\u003e\n\u003ctd\u003eSN2700 (MSN2700-CS2F or MSN2700-CS2ROS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eF or R is airflow; a trailing C or O is the OS.\u003c\/strong\u003e F is P2C (air in at the power side, out at the ports), R is C2P. Match it to your hot and cold aisles before you order.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eMSN2100-CB2F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNVIDIA SKU\u003c\/td\u003e\n\u003ctd\u003e920-9N100-00F7-0X0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlatform\u003c\/td\u003e\n\u003ctd\u003eNVIDIA Spectrum SN2100, 1U half-width, short depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePorts\u003c\/td\u003e\n\u003ctd\u003e16x QSFP28, 10\/25\/40\/50\/56\/100GbE per port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax ports by speed\u003c\/td\u003e\n\u003ctd\u003e16x 100GbE · 32x 50GbE · 16x 40GbE · 64x 25GbE · 64x 10GbE (with splitter cables)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThroughput\u003c\/td\u003e\n\u003ctd\u003e3.2Tb\/s switching capacity (1.6Tb\/s one direction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacket rate\u003c\/td\u003e\n\u003ctd\u003e2.38 Bpps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatency\u003c\/td\u003e\n\u003ctd\u003e300ns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacket buffer\u003c\/td\u003e\n\u003ctd\u003e16MB, fully shared\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPU \/ memory\u003c\/td\u003e\n\u003ctd\u003eIntel Atom x86 · 8GB DDR3L · 16GB M.2 SATA SSD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e2x AC power supplies (fixed, not field-replaceable), 100–240VAC · 74W typical with passive cables (ATIS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFans\u003c\/td\u003e\n\u003ctd\u003e4 (fixed, not field-replaceable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront-panel management\u003c\/td\u003e\n\u003ctd\u003eRJ45 management, RJ45 console, mini USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork OS (as ordered)\u003c\/td\u003e\n\u003ctd\u003eNVIDIA Onyx (formerly MLNX-OS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow\u003c\/td\u003e\n\u003ctd\u003eP2C (power-to-connector): air in at the PSU side, out at the ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e43.8 x 200 x 508mm (1.72 x 7.87 x 20in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.54kg (10lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle\u003c\/td\u003e\n\u003ctd\u003eNVIDIA lists this switch family as End of Life (EOL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eRefurbished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime, backed by Resilient Tec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSource: NVIDIA Spectrum SN2000 hardware user manual (\u003ca href=\"https:\/\/networking-docs.nvidia.com\/sn2000hw\/latest\/specifications\" target=\"_blank\" rel=\"noopener\"\u003especifications\u003c\/a\u003e, \u003ca href=\"https:\/\/networking-docs.nvidia.com\/sn2000hw\/latest\/ordering-information\" target=\"_blank\" rel=\"noopener\"\u003eordering information\u003c\/a\u003e) and the \u003ca href=\"https:\/\/www.nvidia.cn\/content\/dam\/en-zz\/Solutions\/networking\/br-sn2000-series.pdf\" target=\"_blank\" rel=\"noopener\"\u003eNVIDIA SN2000 series datasheet\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eNote on Power and Fans: Redundant, Not Hot-Swap\u003c\/h2\u003e\n\u003cp\u003eThe SN2100 has two built-in power supplies and four built-in fans. Unlike the SN2700, NVIDIA lists them as non-replaceable, so they cannot be hot-swapped in the field. A failed PSU or fan means swapping the switch, which our lifetime warranty covers.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eGood to Know\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManagement lives on the front.\u003c\/strong\u003e The SN2100 puts its management port, console and mini USB on the port side; the SN2700 puts them on the rear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo per rack unit.\u003c\/strong\u003e NVIDIA designed the SN2100 so two switches sit side by side in a single 1U slot of a 19-inch rack, a compact way to give hosts a redundant pair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirflow must match the rack.\u003c\/strong\u003e This is the P2C build. All SN2100s in a row should match the aisle layout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40GbE look-alike.\u003c\/strong\u003e MSN2100-BB2F is one letter away and is the 40GbE model.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEOL platform.\u003c\/strong\u003e NVIDIA no longer sells new SN2000 systems, so refurbished units are the practical way to expand or spare an SN2100 pair.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eQuick Checklist — Is This the Right Switch?\u003c\/h2\u003e\n\u003cp\u003eYou need 16 ports of 100GbE QSFP28 in a half-width, short-depth chassis. Your rack has the \u003cstrong\u003epower-supply side\u003c\/strong\u003e on the cold aisle (P2C). You run, or are matching, Onyx. You are fine with built-in, non-hot-swap power and fans, and you will source a rail kit.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailability\u003c\/h2\u003e\n\u003cp style=\"border-left: 3px solid #1e8f5e; background: #f7f8fa; padding: 10px 14px; margin: 14px 0;\"\u003e\u003cstrong\u003eRefurbished and shipped from Resilient Tec in Knoxville, TN · Free standard shipping on US orders.\u003c\/strong\u003e\u003cbr\u003eBuilding a redundant pair? Tell us and we will quote two switches, the mounting kit and the cabling together. \u003ca href=\"\/pages\/request-a-quote\"\u003e\u003cstrong\u003eRequest a quote →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e lifetime, \u003ca href=\"\/pages\/lifetime-warranty\"\u003ebacked by Resilient Tec\u003c\/a\u003e — not a manufacturer term. On switches that means advance replacement when we have one in stock, otherwise repair or replacement with an equivalent unit, from a named seller in the US.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eYou Might Also Need\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/mcp1600-c001-mellanox-compatible-100g-qsfp28-passive-dac-cable-1m\"\u003eMCP1600-C001 100G QSFP28 passive DAC, 1 m\u003c\/a\u003e — switch-to-server or switch-to-switch inside the rack\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/100g-qsfp28-passive-dac-3m-reach-download-mellanox-compatibility-report-with-detailed-specifications\"\u003eMCP1600-C003 100G QSFP28 passive DAC, 3 m\u003c\/a\u003e — the next rack over\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/mcp7f00-a002r30n-new-nvidia-100gbe-qsfp28-to-4x25gbe-sfp28-passive-breakout-dac-cable-2m\"\u003eNVIDIA MCP7F00-A002R30N 100G to 4x25G breakout DAC, 2 m\u003c\/a\u003e — one QSFP28 port to four 25GbE server links\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/100g-qsfp28-sr4-transceiver-850nm-100m-mpo-mellanox-compatible-mma1b00-c100d\"\u003eMMA1B00-C100D 100G QSFP28 SR4 transceiver\u003c\/a\u003e and \u003ca href=\"\/products\/mfa1a00-c003-mellanox-compatible-100g-qsfp28-active-optical-cable-3m\"\u003eMFA1A00-C003 100G AOC\u003c\/a\u003e — for runs past passive copper\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/pages\/product-guides\"\u003eProduct guides\u003c\/a\u003e — structured cabling, switches and the rest of the rack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eRelated Guides\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/mellanox-sn2100-sn2700-port-split-25g-50g-breakout\"\u003ePort Splitting on Mellanox SN2100, SN2700 and SN2410: 4x25G and 2x50G Breakouts Without Losing a Port\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/qsfp28-breakout-cables-100g-to-4x25g-vs-4x10g-guide\"\u003eQSFP28 Breakout Cables: 100G to 4x25G vs 4x10G Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/dac-cable-no-link-fix-25g-100g-fec-mismatches-2026-guide\"\u003eDAC Cable No Link? Fix 25G\/100G FEC Mismatches (2026 Guide)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/100g-qsfp28-dac-cables-for-ai-homelab-clusters-the-connectx-cable-guide-2026\"\u003e100G QSFP28 DAC Cables for AI Homelab Clusters: The ConnectX Cable Guide (2026)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/network-switches-guide\"\u003eNetwork Switches Guide\u003c\/a\u003e\u003c\/p\u003e","brand":"NVIDIA","offers":[{"title":"Default Title","offer_id":68123351973988,"sku":"MSN2100-CB2F-R","price":6745.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/3482\/4548\/files\/MSN2100-CB2F_2.jpg?v=1794407839","url":"https:\/\/resilient-tec.com\/products\/msn2100-cb2f-nvidia-mellanox-sn2100-16-port-100gbe-half-width-switch-onyx-refurbished","provider":"Resilient Tec","version":"1.0","type":"link"}