A9K‑2T20GE‑B Specifications
Cisco 2‑Port 10 Gigabit + 20‑Port Gigabit Ethernet Medium Queue Combo Line Card
Manufacturer: Cisco
Manufacturer Model: A9K‑2T20GE‑B
Product Line: Cisco ASR 9000 Series Line Cards
Product Series: 2‑Port 10GE / 20‑Port GE Medium Queue Combo
Product Type: Ethernet Line Card
Product Name: Cisco A9K 2‑Port 10GE + 20‑Port GE Line Card (Medium Queue)
KEY FEATURES:
Port Count: 2 × 10 Gigabit Ethernet (requires XFP modules), 20 × Gigabit Ethernet (requires SFP modules)
Interface Type: Supports 10 Mb/s, 100 Mb/s, 1 Gb/s and 10 Gb/s Ethernet
Queue Scale: Medium‑Queue variant (higher queue count than low‑queue)
Onboard Memory: 4 GB DRAM
Hot‑Swap Support: Yes (for compatible chassis slot)
PERFORMANCE:
Data Rate: Full line‑rate forwarding for 10GE + GE ports
Total Queues: Supports up to ~192,000 queues (depending on system license and hardware)
Physical dimensions: ~35.56 cm × 4.37 cm × 52.07 cm (14″ × 1.72″ × 20.5″)
Weight: ~6.35 kg to ~8.62 kg (14‑19 lb) depending on revision
Power Consumption: Typical ~310 W‑565 W; Maximum ~350 W‑630 W depending on card type and operating conditions
ENVIRONMENTAL & RELIABILITY:
Designed for service‑provider and carrier‑class edge networks with IP/MPLS and Carrier Ethernet services
Meets high availability requirements in chassis architecture (e.g., for the ASR 9000 series)
Operating temperature and other environmental specs per chassis documentation
PHYSICAL:
Form Factor: Modular line card compatible with Cisco ASR 9000 Series chassis
Slot Requirement: One line‑card slot in compatible chassis
Dimensions and weight as listed above
COMPATIBILITY & NOTES:
Compatible Devices: Cisco ASR 9000 Series routers such as ASR‑9006, ASR‑9010 (and variants)
Requires XFP transceivers for the two 10 Gigabit ports and SFP transceivers for the 20 Gigabit ports
Ensure chassis firmware/software supports this medium‑queue line card variant and queue licensing
Ideal for deployments needing a mix of 10 Gigabit uplinks and many Gigabit ports in a scalable Carrier Ethernet/MPLS environment

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