What is the performance bandwidth and latency?

It delivers 408 Gb/s aggregate bandwidth (24 ports x 8.5 Gb/s x 2 duplex) and maximum 700 ns fabric latency with cut-through routing at 8 Gb/s, no contention. Maximum frame size is 2,112 bytes with 700 dynamically allocated buffers (484/port max), ensuring low-latency switching per Mojo Systems PDF .

What are the power and cooling requirements?

Single power supply accepts 85-262 VAC (47-63 Hz), with nominal 48W consumption and 57W maximum at full 24-port 8 Gb/s load. Heat dissipation is 195 BTU/hr max, airflow 23 CFM max (non-port to port-side), making it efficient for dense racks per Mojo Systems PDF .

What physical dimensions and form factor?

1U rack-mountable in 19-inch EIA chassis, dimensions 42.88 cm width x 4.29 cm height x 30.66 cm depth, weight 4.2 kg without SFPs. Chassis features non-port to port-side airflow for standard data center integration per Mojo Systems PDF .

Which Fibre Channel standards and services are supported?

Complies with FC-PH, FC-PH-2, FC-PH-3, FC-GS-2, FC-FLA, FC-FG, FC-SW3. Supports Class 2, 3, F services, port types FL/F/M/E/U, unicast/multicast (255 groups)/broadcast, up to 56 domains/19 hops in FOS fabric per Mojo Systems PDF and itinstock .

What environmental tolerances does it have?

Operating humidity 10-85% non-condensing, storage 10-95%; altitude up to 3,000 meters; operating shock 20G 6ms half-sine. These specs ensure reliability in enterprise data centers per Mojo Systems PDF .

DS-300B-24 - Dell EMC DS-300B 24-Port 8Gb/s Fibre Channel Switch

Name: Dell EMC DS-300B 24-Port 8Gb/s Fibre Channel Switch
Brand: EMC
SKU: DS-300B-24
Price: 340 USD
Availability: InStock

DS-300B-24 - Dell EMC DS-300B 24-Port 8Gb/s Fibre Channel Switch | US IT Hardware

Product overview

The Dell EMC Connectrix DS-300B (SKU: DS-300B-24) is an enterprise-grade 24-port 8Gb/s Fibre Channel switch from the Connectrix B Series, utilizing Broadcom GoldenEye-2 ASIC for reliable performance. It supports universal ports (E, F, M, FL, N) scalable in 8-port increments via Ports-on-Demand licenses, with auto-sensing speeds of 2, 4, 8 Gb/s and 408 Gb/s aggregate bandwidth. Key features include 700 ns latency, 2,112-byte frame size, and support for FC standards like FC-PH-3 and FC-SW3. The 1U rack-mountable chassis measures 42.88 x 4.29 x 30.66 cm, weighs 4.2 kg, with single 85-262 VAC power supply (48W nominal, 57W max) and non-port to port-side airflow. Ideal for entry-level SANs or edge switching, it handles unicast/multicast traffic across up to 56 domains. Environmental specs support 10-85% humidity and up to 3,000m altitude, ensuring data center compatibility.

24 scalable 8Gb/s universal FC ports with Ports-on-Demand
408 Gb/s aggregate bandwidth, 700 ns latency at 8 Gb/s
1U rack-mount, 48W nominal power, 4.2 kg weight
Auto-sensing 2/4/8 Gb/s speeds, speed matching
700 frame buffers, supports Class 2/3/F services
FC-SW3 compliant, up to 56 fabric domains

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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	DS-300B-24
Brand	EMC
Condition	Refurbished
Model	DS-300B
Technology	Broadcom single-chip architecture; GoldenEye-2 ASIC
Media Types	4 Gb/s Long-Wavelength Laser (LWL), Extended Long-Wavelength Laser (ELWL); distance depends on fiber
Product Line	Connectrix B Series
Product Type	Fibre Channel Switch
Class of Service	Class 2, Class 3, Class F (Interswitch Frames)
Fibre Channel Standards	FC-PH, FC-PH-2, FC-PH-3, FC-GS-2, FC-FLA, FC-FG, FC-SW3

Compatible systems

No specific system or OS compatibility lists found in sources.

Best for

Entry-Level SANs
Provides cost-effective foundation with 24 scalable ports at 8Gb/s auto-sensing speeds and Ports-on-Demand licensing, supporting up to 408Gb/s bandwidth for growing storage networks.
Edge Switching
Functions as core-to-edge switch with universal port types (E, F, M, FL, N) and low 700ns latency, enabling seamless integration into larger fabrics with 56 domains.
Enterprise Data Centers
1U rack-mountable design with 48W nominal power and robust environmental tolerance (10-85% humidity, 3,000m altitude) suits dense deployments handling multicast traffic.
Scalable Fabrics
Supports ISL trunking and frame-based load balancing across 24 ports, with 700 frame buffers for high-performance unicast and broadcast in FC-SW3 compliant environments.

Frequently asked questions

What port configurations does the DS-300B support?

Details

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EMC Enterprise Drives

Frame Buffers	700 dynamically allocated, 484 maximum per port

Network & Communication

Port Speeds	Auto-sensing 2, 4, 8 Gb/s full line-speed switching full duplex; optional fixed speeds; speed matching
Fabric Domains	Single FOS fabric: 56 domains, 19 hops; Single M-EOS fabric: 31 domains, 3 hops
Data Traffic Types	Unicast, multicast (255 groups), broadcast
Maximum Frame Size	2,112-byte payload
Aggregate Bandwidth	408 Gb/s (24 ports x 8.5 Gb/s line rate x 2 full duplex)
Maximum Fabric Latency	700 ns with no contention, cut-through routing at 8 Gb/s

Power Supplies	Single power supply; input voltage 85-262 VAC nominal, 47-63 Hz
Power Consumption	Nominal 48 watts; maximum 57 watts with 24 ports at 8 Gb/s

Physical Characteristics

Weight	4.2 kg (9.3 lb) without SFP/SFP+ media
Dimensions	Width: 42.88 cm (16.88 in); Height: 4.29 cm (1.69 in); Depth: 30.66 cm (12.07 in)
Form Factor	1U rack-mountable, 19-inch EIA-compliant
Chassis Type	Non-port to port-side airflow

Environmental

Shock	Operating: 20 G, 6 ms, half-sine
Airflow	Maximum 23 CFM; nominal 18 CFM; non-port to port-side
CO2 Emissions	210 kg per year (16 ports at 0.42 kg/kWh); 1.09 kg per Gb/s per year
Heat Dissipation	Maximum 195 BTU/hr with 24 ports
Relative Humidity	Operating: 10% to 85% non-condensing; Storage: 10% to 95% non-condensing
Operating Altitude	Up to 3,000 meters (9,842 feet)
Operating Temperature	Implied by facility requirements in manual

Interface/Ports

Port Types	FL_Port, F_Port, M_Port (Mirror Port), E_Port; self-discovery (U_Port); optional port type control
Serial Port	Supported per hardware reference
Fibre Channel Ports	24 ports in 8-port increments (8, 16, 24) universal (E, F, M, FL, N) ports via Ports-on-Demand licenses

Dell EMC DS-300B 24-Port 8Gb/s Fibre Channel Switch