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Lenovo BES53248 4Tbps Ethernet Storage Switches

Brand: Lenovo
Product: BES53248 Ethernet Storage Switch
Model: Base model with 16x SFP28 (10/25GbE) and 2x QSFP28 ports active (Back-to-Front airflow)
Physical ports (Max. Ports): 48x SFP28 (10/25GbE) and 8x QSFP28 ports (10/40 or 25/50/100GbE)
Physical ports (Management Port): Out-of-band management port (RJ-45, 10/100/1000Base-T)
Physical ports (Console Port): 1x RJ-45 console port & 1x USB 2.0 port
Port on Demand Options: Port License E-key activates up to 8 SFP+ additional ports; Port License E-key activates up to 6 QSFP+ additional ports; Port License E-key activates up to 8 SFP+ and 2 QSFP+ additional ports
Supported Optics and Cables: DAC cable: 10 GbE SFP+, 25 GbE SFP28, 40 GbE QSFP+, and 100 GbE QSFP28; multiple lengths available; 10G optic (SFP+, LC, 850nm, MMF): 10GBASE-SR & (SFP+, LC, 1310nm, SMF): 10GBASE-LR; 25G optic (SFP28, LC, 850nm, MMF): 25GBASE-SR4; 40G optic (QSFP+, MPO, 850nm, MMF): 40GBASE-eSR4;100G optic (QSFP28, MPO, 850nm, MMF): 100GBASE-SR4
PerformanceSwitching capacity: 4Tbps
Performance Maximum forwarding rate: billion packets per second (Bpps)
Performance Latency: Ultra-low latency
Performance MAC: Broadcom Trident3 BCM56873
EFOS Networking OS: Linux based
EFOS Networking OS (Packet Processing): L2, L3 v4/v6, MLAG, ECMP, ACLs
EFOS Networking OS(Storage Flows): PFC, ECN, Lossless Traffic Class, DCTCP.
Electrical: Power requirement: 100~240VAC, 50/60Hz
Rack-mount rail kits: 4-post rail kit
Enclosure: Back-to-front airflow (port-side exhaust); Dimension (HxWxD): 43mm (1U) x 440 x 508mm
Power & Cooling supply: Hot-swap redundant power supplies (1 + 1) & Hot-swappable fan tray (4 + 2) standard
Warranty: 1 year hardware and firmware/EFOS (upgrades available)

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Lenovo BES53248 4Tbps Ethernet Storage Switches

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