244949-B21 is an HP NC6770 single-port Gigabit Ethernet server adapter designed for HP ProLiant servers. It provides 1000Base-SX fiber-optic connectivity through an SC connector and uses a 64-bit/133MHz PCI-X bus, with backward compatibility to standard PCI architectures. The adapter is based on a Broadcom Gigabit Ethernet controller and supports features including Jumbo Frames, PXE, PCI Hot Plug, Network Fault Tolerance, and load balancing.
- Part Number: 244949-B21
- Manufacturer: HP / Compaq
- Product: NC6770 PCI-X Gigabit Server Adapter
- Network Speed: 1Gbps / 1000Mbps, full duplex
- Network Standard: 1000Base-SX / IEEE 802.3z
- Port: 1 × Gigabit fiber port
- Interface: 64-bit / 133MHz PCI-X
- Connector: SC fiber-optic
- Fiber Type: Multimode fiber
- Maximum Distance: Up to 1,804 ft (550m) with 50µm fiber; up to 705 ft (220m) with 62.5µm fiber
- Controller: Broadcom Gigabit Ethernet controller
- Onboard Memory: 96KB
- Features: Jumbo Frames, PXE, PCI Hot Plug, Network Fault Tolerance, Transmit/Switch-assisted Load Balancing
- Dimensions: Approximately 6.6 × 2.5 in (16.5 × 6.4 cm)
- Application: High-speed fiber networking for enterprise servers
- Compatible Systems: Various HP ProLiant servers with compatible PCI-X slots, including systems such as the DL320 G2, DL380 G3, and DL760 G2.
- Related Part: 247000-001 — NC6770 PCI-X 1000-SX adapter assembly
- Compatibility Note: The NC6770 requires a compatible PCI-X/PCI slot and uses 1000Base-SX fiber, not copper RJ-45 Ethernet.
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