The HPE FlexFabric 5900 Switch Series is a family of high-density, ultra-low-latency, top-of-rack (ToR) switches that is part of the Hewlett Packard Enterprise (HPE) FlexNetwork architecture's HPE FlexFabric solution.

Ideally suited for deployment at the server access layer of large enterprise data centers, the HPE FlexFabric 5900 Switch Series is also powerful enough for deployment at the data center core layer of medium-sized enterprises. With the increase in virtualized applications and server-to-server traffic, customers now require ToR switch innovations that will meet their needs for higherperformance server connectivity, convergence of Ethernet and storage traffic, the capability to handle virtual environments, and ultra-low-latency all in a single device.

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I/O ports and slots	48 autosensing 10/100/1000 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T) Duplex: 10BASE-T/100BASE-TX: half or full; 1000BASE-T: full only 4 fixed 1000/10000 SFP+ ports 2 QSFP+ 40-GbE ports
Additional ports and slots	1 RJ-45 serial console port 1 RJ-45 out-of-band management port 1 USB 2.0
Power supplies	2 power supply slots 1 minimum power supply required (ordered separately)
Fan Tray	2 fan tray slots The customer must order fan trays, as fan trays are not included with the switch. This system requires two same-direction airflow fan trays to function properly. The system should not be operated with only one fan tray for more than 24 hours. The system should not be operated without a fan tray for more than two minutes. The system should not be operated outside of the temperature range of 32°F (0°C) to 113°F (45°C). Failure to comply with these operating requirements may void the product warranty
Physical characteristics	Dimensions 17.32(w) x 18.11(d) x 1.72(h) in (43.99 x 46.0 x 4.37 cm) (1U height) Weight 28.66 lb (13 kg) shipping weight
Memory and processor	512 MB flash; Packet buffer size: 9 MB, 2 GB SDRAM
Performance	10 Gbps Latency < 1.5 µs (64-byte packets) Throughput up to 250 Mpps (64-byte packets) Routing/Switching capacity 336 Gbps Routing table size 16000 entries (IPv4), 8000 entries (IPv6) MAC address table size 128000 entries
Environment	Operating temperature 32°F to 113°F (0°C to 45°C) Operating relative humidity 10% to 90%, noncondensing Acoustic Low-speed fan: 65.7 dB, High-speed fan: 70.6 dB
Electrical characteristics	Frequency 50/60Hz Maximum heat dissipation 887 BTU/hr (935.79 kJ/hr) Voltage 100 - 240 VAC, rated -40 to -60 VDC, rated (depending on power supply chosen) Maximum power rating 260 W Idle Power 200 W
Safety	UL 60950-1; EN 60825-1 Safety of Laser Products-Part 1; EN 60825-2 Safety of Laser Products-Part 2; IEC 60950-1; CAN/CSA-C22.2 No. 60950-1; Anatel; ULAR; GOST; EN 60950-1/A11; FDA 21 CFR Subchapter J; NOM; ROHS Compliance
Emissions	VCCI Class A; EN 55022 Class A; ICES-003 Class A; ANSI C63.4 2003; AS/NZS CISPR 22 Class A; EN 61000-3-2:2006; EN 61000-3-3:1995 +A1:2001+A2:2005; EMC Directive 2004/108/EC; FCC (CFR 47, Part 15) Class A
Immunity	Generic ETSI EN 300 386 V1.3.3 EN EN 55024:1998+ A1:2001 + A2:2003 ESD EN 61000-4-2; IEC 61000-4-2 Radiated EN 61000-4-3; IEC 61000-4-3 EFT/Burst EN 61000-4-4; IEC 61000-4-4 Surge EN 61000-4-5; IEC 61000-4-5 Conducted EN 61000-4-6; IEC 61000-4-6 Power frequency magnetic field IEC 61000-4-8; EN 61000-4-8 Voltage dips and interruptions EN 61000-4-11; IEC 61000-4-11 Harmonics EN 61000-3-2, IEC 61000-3-2 Flicker EN 61000-3-3, IEC 61000-3-3
Management	IMC - Intelligent Management Center; command-line interface; out-of-band management; SNMP Manager; Telnet; FTP
Notes	The customer must order a power supply, as the device does not come with one. At least one JC680A or JC681A is required. The HPE FlexFabric 5900AF-48XG-4QSFP+ Switch is NEBS GR-1089-CORE compliant.
Services	Refer to the Hewlett Packard Enterprise sales website at: http://www.hpe.com/networking/services for details on the service-level descriptions and product numbers. For details about services and response times in your area, please contact your local Hewlett Packard Enterprise sales office.