Switch HPE FlexNetwork 5940 32-port 40GbE QSFP+ with 2 Fans 2 Power Supply 

32 QSFP+ 40GbE ports

1 RJ-45 serial console port
1 RJ-45 out-of-band management port 1 USB 2.0
1 Mini USB 2.0

2 power supply slots

2 fan tray slots

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.

Dimensions: 17.32(w) x 25.98(d) x 1.74(h) in (44.00 x 66.0 x 4.42 cm)
Weight: 28.66 lb (13 kg)

1 GB flash; Packet buffer size: 12.2 MB, 4 GB SDRAM

10 Gbps Latency < 1 µs (64-byte packets)
ThrougHPEut up to 1904Mpps
Switching capacity: 2560 Gbps
Routing table size 120000 entries (IPv4), 60000 entries (IPv6)
MAC address table size 288000 entries

Operating temperature: 32°F to 113°F (0°C to 45°C)
Operating relative humidity: 10% to 90%, noncondensing
Nonoperating/Storage temperature:-40°F to 158°F (-40°C to 70°C)
Nonoperating/Storage relative humidity:5% to 95% @ 140°F (60°C)
Acoustic: Low-speed fan: 59.8 dB, High-speed fan: 74.4 dB

Frequency: 50/60 Hz
Maximum heat dissipation 597/1361 BTU/hr (629.83/1435.86 kJ/hr)
Voltage: 

90 - 264 VAC, rated
-40 to -75 VDC, rated

(depending on power supply chosen)

Maximum power rating: 409 W
Idle power is the actual power consumption of the device with no ports connected.
Maximum power rating and maximum heat dissipation are the worst-case theoretical maximum numbers provided for planning the infrastructure with fully loaded PoE (if equipped), 100% traffic, all ports plugged in, and all modules populated.

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

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; ANSI/TIA-1057 LLDP Media Endpoint Discovery (LLDP-MED)