Name: Juniper Networks QFX5120-48Y
Brand: Juniper Networks

Juniper Networks QFX5120-48Y

★ 3.2 Value Score

Switching Capacity: 4 Tbps (bidirectional)
Forwarding Rate: 2 Bpps
Ports (breakdown): 48 x 1/10/25GbE SFP28 + 8 x 40/100GbE QSFP28
PoE Budget: N/A (non-PoE data center switch)
Layer (L2/L3): L2/L3 (L3 features such as OSPF/BGP/IS-IS require Juniper licensing; the licensing tier is unclear across sources)
Stacking support: Virtual Chassis, up to 2 members (licensing requirement unclear across sources)
Packet Buffer: 32 MB
Form Factor: 1U fixed, 1.72 x 17.36 x 20.48 in (W x H x D)
Power Consumption: 272 W max / 247 W typical
Airflow: Varies by SKU (AFI = airflow in, AFO = airflow out, AFO2/AFI2 variants, AC or DC power)

✔ Pros: Dense 25GbE access with 8 x 100GbE uplinks in a compact 1U chassis; 4 Tbps switching capacity and 2 Bpps forwarding rate for line-rate leaf/access use; 32 MB packet buffer suited to bursty data center traffic; Junos OS with full L2/L3 feature set and Virtual Chassis for two-member redundancy; Low power draw (about 272 W max) relative to its port density; Widely available new and used through resellers, with varied airflow and power SKUs
✘ Cons: Limited Virtual Chassis scale (max 2 members) compared with larger stacking platforms; Layer 3 and Virtual Chassis licensing tiers are inconsistently documented, which can add cost; Juniper's official spec pages now redirect to HPE, making primary-source verification harder; Prices vary widely by SKU (airflow direction, AC/DC, license bundle), so the price range is broad; No PoE, so it cannot power access points or phones directly; Fixed 1U form factor with no modular expansion options
Est. Price: $4,995 - $22,544

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