Mellanox SN4600-VS2F 200GbE 64-Port QSFP56 Switch 2U Used
Quick answer: NVIDIA Spectrum-3 SN4600 SN4600-VS2F used, bench-tested. NVIDIA Spectrum-3 SN4600 with 64 QSFP56 ports at 200GbE, 12.8 Tb/s, 8.4 Bpps, 2U and P2C airflow, running Onyx.
In stock: SN4600-VS2F is in stock — availability is confirmed per part number, so send the exact model you need and we check the shelf before quoting.
Need a quote? Message WhatsApp +86 13068616914 with the part number (for example SN4600-VS2F) and the quantity — we reply with price, condition notes and photos of the actual unit. No price is listed here because every order is quoted per part number.
NVIDIA Spectrum-3 SN4600 SN4600-VS2F
The NVIDIA Spectrum-3 SN4600 (VS2F) is a 64-port 200GbE spine: 12.8 Tb/s, 8.4 Bpps and 2U of chassis, with every port breakable to 2 × 100GbE or 4 × 50GbE — 128 × 100GbE downlinks from one box. It is Spectrum-3, not Spectrum-2, so it carries the newer telemetry and buffer behaviour that RoCEv2 fabrics depend on.
Condition: Used — cleaned, re-flashed and bench-tested on our own test line before it is listed. 90-day warranty from delivery.
| Specification | Details |
|---|---|
| Part number | SN4600-VS2F |
| Family | NVIDIA Spectrum-3 SN4600 |
| Switch silicon | NVIDIA Spectrum-3 |
| Ports | 64 × 200GbE QSFP56 |
| Port speed | 200GbE per port (100/50/25GbE with breakouts) |
| Connectors | QSFP56 (64 ports) |
| Switching capacity | 12.8 Tb/s |
| Packet rate | 8.4 Bpps |
| Airflow | P2C — power-to-connector (front-to-back) |
| Form factor | 2U rackmount |
| Power | 2 × hot-swap AC PSU (1+1), hot-swap fans |
| Management | x86 control plane, RJ45 management and console |
| Software | NVIDIA Onyx |
Key features
- 64 × 200GbE QSFP56 ports
- 12.8 Tb/s, 8.4 Bpps
- Breakout to 2 × 100GbE or 4 × 50GbE
- Onyx, VXLAN and EVPN
- RoCEv2 with PFC and ECN
- Dual hot-swap PSU, hot-swap fans
Typical deployments
200G spine layers, dense 100G server aggregation, EVPN-VXLAN fabrics, and AI clusters on RoCEv2 in standard front-to-back racks.
What is included
- Switch chassis with both power supplies
- Fan units (P2C)
- Rail kit
- Condition report and bench-test notes
Not included
- QSFP56 optics and cables
- Rails for non-standard racks
SN4600-VS2F in the lineup
The SN4600 doubles both port count and speed over the SN3700, which is why it sits in the spine rather than the leaf. Against the SN5600 it stops at 200G per port — the SN5600 is the 800G Spectrum-4 platform.
How it compares with models we also stock
| Model | Fabric | Ports | Best for |
|---|---|---|---|
| SN4600-VS2F | Ethernet 200G | 64 QSFP56 | 200G spine, Onyx, P2C |
| SN4600-VS2RC | Ethernet 200G | 64 QSFP56 | Same switch with Cumulus and C2P |
| SN3800-CS2F | Ethernet 100G | 64 QSFP28 | Same 2U body at 100G |
| SN5600 | Ethernet 800G | 64 OSFP | Spectrum-4 spine for 400G/800G |
Why buy this switch from Zhongxin Data
- Bench-tested on our own in-house test line — ports, fans and power supplies are checked before the unit leaves.
- We quote only what we can physically confirm: the exact part number, airflow direction and condition notes come from the unit in front of us.
- Used enterprise switches at secondary-market pricing, with a 90-day warranty from delivery.
- Worldwide shipping from Hong Kong, China; consolidation with servers, NICs and optics from the same rack is routine.
Request a quote
Send the part number SN4600-VS2F, the quantity you need and your destination to WhatsApp +86 13068616914 (or reply to any thread on zhongxindata.hk). We confirm availability against the exact model before quoting, and we can quote alternative airflow builds or port-count variants from the same family if they fit your rack better.
Frequently asked questions
How many ports does the SN4600 have?
64 QSFP56 ports at 200GbE — not 36. The 36-port 100GbE figure belongs to the SB7700 EDR InfiniBand switch.
Which ASIC generation is it?
Spectrum-3, the 400G/200G generation. The SN3700 is Spectrum-2.
Is it 1U or 2U?
2U: 64 QSFP56 cages plus fan trays need the extra height.
Which NOS does VS2F run?
Onyx. The Cumulus build is VS2RC and the ONIE build is VS2FO.
Is it InfiniBand?
No, Ethernet with RoCEv2. Native InfiniBand is the Quantum QM series.
What warranty is included?
90-day warranty from delivery, after bench testing.
Available at Zhongxin Data — enterprise network hardware specialists. Worldwide shipping from Hong Kong, China.
Product image is a reference image for the form factor — revision, label and airflow sticker vary by batch. Ask us for photos of the actual unit before you commit.