What is the switching capacity and port configuration of HPE 787635-B21?

The HPE 6127XLG Blade Switch delivers 1.2Tbps full-duplex aggregate bandwidth with 16x internal 40GbE SFP+ ports connecting to blade servers and 2x external 40GbE QSFP+ uplinks. Non-blocking architecture supports wire-speed forwarding for high-throughput blade environments.

Which HPE BladeSystem enclosures support the 6127XLG switch?

Compatible with HPE BladeSystem c7000 and c3000 enclosures, integrating with ProLiant BL460c Gen9 and BL660c Gen9 blades. Installs in switch bays for seamless mezzanine connectivity without external cabling.

What protocols does the HPE 787635-B21 support for storage?

Supports Ethernet, iSCSI, Fibre Channel over Ethernet (FCoE), and RoCE protocols, enabling converged networking for multiple storage topologies in virtualized data centers with low-latency performance.

What management and security features are included?

Management via CLI, web-based GUI, SNMP; security includes Access Control Lists, DHCP Snooping, MACSec. These ensure secure, easy-to-deploy operation in enterprise blade infrastructures.

What is the latency and power efficiency of this blade switch?

Port-to-port latency is ~700ns, ideal for HPC and virtualization. Internal power supply with redundancy; max PoE 370W; operates 0-45°C, optimizing density in BladeSystem chassis.

How does it compare to other HPE blade switches?

Offers higher 1.2Tbps/40GbE vs. FlexFabric 20/40 F8 (lower rates); superior for 40GbE uplinks/internal vs. 787644-B21 (different ports) or 787658-B21 (slower transfers).

787635-B21 - HPE 6127XLG Ethernet Blade Switch 16x internal 40GbE SFP+ / 2x 40GbE QSFP+ uplinks Switch

Name: 787635-B21 - HPE 6127XLG Ethernet Blade Switch 16x internal 40GbE SFP+ / 2x 40GbE QSFP+ uplinks Switch
Brand: HPE
SKU: 787635-B21
Price: 318 USD
Availability: InStock

787635-B21 - HPE 6127XLG Ethernet Blade Switch 16x internal 40GbE SFP+ / 2x 40GbE QSFP+ uplinks Switch | US IT Hardware

Product overview

The HPE 6127XLG Blade Switch (787635-B21) is a high-performance Ethernet switch kit designed for HPE BladeSystem c7000 and c3000 enclosures, delivering 1.2Tbps full-duplex aggregate bandwidth via 16 internal 40GbE ports to blade servers and 2 external 40GbE QSFP+ uplink ports. It supports advanced Layer 2 and Layer 3 protocols including Ethernet, iSCSI, FCoE, and RoCE, enabling converged storage and low-latency networking for virtualization workloads. With ~700ns port-to-port latency, non-blocking architecture ensures wire-speed performance across all ports. Security features like Access Control Lists, DHCP Snooping, and MACSec protect data integrity. Management via CLI, web GUI, SNMP simplifies deployment. Ideal for data centers requiring high-throughput east-west traffic, scalable enterprise IT, and HPC environments. Compact blade form factor (8.2x26.4x7.87cm) integrates seamlessly with ProLiant BL460c/660c Gen9 blades, reducing cabling complexity and power draw while maximizing density.

1.2Tbps full-duplex aggregate switch bandwidth.
16x 40GbE internal ports to blade servers.
2x 40GbE QSFP+ external uplink ports.
~700ns low port-to-port forwarding latency.
Supports FCoE, iSCSI, RoCE protocols.
Layer 2/3 switching with MACSec security.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
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 #	787635-B21
Brand	HPE
Condition	Refurbished
Model	6127XLG Ethernet Blade Switch
Protocols	Ethernet, iSCSI, FCoE, RoCE, FCF
Management	CLI, Web GUI, SNMP
Product Line	BladeSystem
Product Type	Ethernet Blade Switch
Layer Support	Layer 2 and Layer 3

Storage

Memory

Compatible systems

Optimized for HPE BladeSystem c7000/c3000 with ProLiant Gen9 blades; supports standard 40GbE optics/DACs.

HPE ProLiant
Model: BL460c Gen9
Form factor: Blade
Generation: Gen9
Direct mezzanine interconnect via 40GbE internal ports.
HPE ProLiant
Model: BL660c Gen9
Form factor: Blade
Generation: Gen9
Full bandwidth support in c7000/c3000 enclosures.
HPE BladeSystem
Model: c7000 Enclosure
Form factor: Chassis
Switch bay installation required.
HPE BladeSystem
Model: c3000 Enclosure
Form factor: Chassis
Switch bay installation required.

Best for

Data Center Top-of-Rack
High-density blade interconnect with 1.2Tbps non-blocking bandwidth for east-west server traffic.
Virtualization Environments
Low-latency 40GbE supports VM migration, NFV with RoCE/iSCSI/FCoE protocols.

Details

Shipping, warranty & returns

Customer reviews

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Storage Temp	-40°C to 70°C
Operating Temp	0°C to 45°C

HPE 6127XLG Ethernet Blade Switch 16x internal 40GbE SFP+ / 2x 40GbE QSFP+ uplinks Switch

Product overview

Featuring

Storage

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Security

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions

Latency	~700ns port-to-port
Switching Capacity	1.2Tbps full-duplex aggregate