QFX5120-48Y-DC-AFO Juniper Networks 48 ports at discount

QFX5120‑48Y‑DC‑AFO Specifications

Juniper QFX5120‑48Y 48‑Port 25 GbE / 10 GbE / 1 GbE + 8 × 100 GbE QSFP28 Uplink Data‑Center Leaf/Access Switch (DC power, front‑to‑back airflow)

Manufacturer: Juniper Networks
Manufacturer Model: QFX5120‑48Y‑DC‑AFO
Product Line: QFX Series
Product Series: QFX5120‑48Y
Product Type: Fixed‑configuration Data‑Center/Leaf Ethernet Switch
Product Name: Juniper QFX5120‑48Y 48‑Port 25 GbE/100 GbE Switch

KEY FEATURES:

Downlink Ports: 48 × SFP28 (supporting 25 GbE native; backwards to 10 GbE or 1 GbE)

Uplink Ports: 8 × QSFP28 (supporting 100 GbE or 40 GbE breakout)

Switching Capacity: Up to ~4 Tbps (bidirectional)

Ultra‑low latency operation (approx. ~550 ns)

Rich Layer 2 & Layer 3 features including EVPN/VXLAN, MC‑LAG, advanced routing

Data‑centres: Designed for high‑density leaf or campus‑distribution roles in DC and high‑speed environments

Airflow & Power: DC‑powered variant (“DC”) with front‑to‑back cooling orientation (“AFO”) for hot‑aisle exhaust

PERFORMANCE:

MAC Address Table Size: ~288,000 entries

IPv4 Routing Scale: ~128,000 prefixes

Jumbo Frame Support: Up to 9,216 bytes

Virtual Chassis support: Up to 4 (acts as one logical switch)

Statistics: Full line‑rate forwarding across all ports

ENVIRONMENTAL & RELIABILITY:

Operating Temperature: 0 °C to ~40 °C

Storage Temperature: –40 °C to ~70 °C

Designed for 24 × 7 data‑center deployments with redundant, hot‑swappable power/fans

DC Input Voltage Range: –48 VDC nominal (wide range supported)

Cooling: Front‑to‑back airflow variant to align with hot‑aisle/cold‑aisle data‑centre layout

PHYSICAL:

Form Factor: 1U rack‑mount chassis

Approximate Dimensions: Width ~44.1 cm (~17.4″) × Height ~4.4 cm (~1.7″) × Depth ~52.0 cm (~20.5″)

Weight: Approx. ~10.7 kg (~23.6 lb) typical