Cisco CAB-HD8-ASYNC High-Density 8-Port EIA-232 Async Cable - New Original | Resilient Tec
Warranty: Lifetime
Cisco CAB-HD8-ASYNC — 8-Port High-Density EIA-232 Async Breakout Cable | New Original
The Cisco CAB-HD8-ASYNC is a New Original Cisco cable — not a third-party compatible — that breaks out a single 68-pin HD D-Sub interface into 8 individual RJ-45 serial (EIA-232) connections. It is the factory-matched cable for Cisco async WAN interface cards and network interface modules, used in terminal server deployments, out-of-band management networks, and enterprise console access infrastructure. In stock and ships same day.
What Cisco Platforms Is This Cable For?
This cable is the correct factory accessory for:
- HWIC-8A and HWIC-16A — High-Speed WAN Interface Cards (8 and 16 port async)
- NIM-16A and NIM-24A — Network Interface Modules for ISR 4000 series
- Cisco ISR series routers — 1800, 2800, and 3800 families
Not sure if this is the right cable for your module? Contact us — we'll confirm the correct part before you order.
New Original vs. Compatible — Why It Matters Here
| Feature | New Original (This) | Third-Party Compatible |
|---|---|---|
| Source | ✅ Genuine Cisco factory part | Aftermarket manufacturer |
| Connector tolerances | ✅ Exact fit for Cisco modules | May vary |
| Pinout accuracy | ✅ Verified Cisco specification | Verify before use |
| TAC / warranty support | ✅ Cisco TAC eligible | Not eligible |
| Lab / production use | ✅ Both | Lab use typical |
Bottom line: for production OOB management networks and environments where Cisco TAC support matters, the genuine part eliminates any doubt.
Ideal Use Cases
- Terminal server deployments — connect up to 8 serial devices (routers, switches, firewalls) to a single async module for centralized console access
- Out-of-band (OOB) management networks — dedicated management access that stays up when in-band paths go down
- Lab environments — CCNA, CCNP, and CCIE rack builds requiring EIA-232 serial console connections
- Data center console aggregation — consolidate serial console connections from multiple devices to a single interface card
- ISR deployment kits — replacement or spare cable for HWIC-8A/16A or NIM-16A/24A modules
Common Mistakes This Cable Prevents
- Ordering a rollover cable instead — this is not a standard console cable; it is the async breakout cable for multi-port async WAN modules specifically
- Using a compatible cable on a production OOB network — pinout variances in third-party versions can cause port assignment issues
- Ordering the wrong module cable — always verify your module part number (HWIC-8A vs NIM-16A) as they use different interface cards
Technical Specifications
- Cisco Part Number: CAB-HD8-ASYNC
- Cable Type: Asynchronous serial (EIA-232) breakout
- Connector A: 1 × 68-pin HD D-Sub (male)
- Connector B: 8 × RJ-45 (male)
- Ports: 8
- Length: 10 ft (3 meters)
- Max Data Rate: Up to 115.2 kbps per port
- Conductor: Copper
- Condition: New Original (genuine Cisco)
The Resilient Tec Guarantee
- ✅ New Original Cisco part — not refurbished, not compatible
- ✅ 58+ units in stock — same-day shipping available
- ✅ Lifetime warranty
- ✅ Talk to a real engineer if you need help confirming the right part
Related Products
- Cisco CAB-HD8-232FC — DB25 female breakout version
- Cisco CAB-HD8-232MT — DB25 male breakout version
- Cisco HWIC-8A / HWIC-16A async interface cards
- Cisco NIM-16A / NIM-24A async modules for ISR 4000
Cisco CAB-HD8-ASYNC — 8-Port High-Density EIA-232 Async Breakout Cable | New Original
The Cisco CAB-HD8-ASYNC is a New Original Cisco cable — not a third-party compatible — that breaks out a single 68-pin HD D-Sub interface into 8 individual RJ-45 serial (EIA-232) connections. It is the factory-matched cable for Cisco async WAN interface cards and network interface modules, used in terminal server deployments, out-of-band management networks, and enterprise console access infrastructure. In stock and ships same day.
What Cisco Platforms Is This Cable For?
This cable is the correct factory accessory for:
- HWIC-8A and HWIC-16A — High-Speed WAN Interface Cards (8 and 16 port async)
- NIM-16A and NIM-24A — Network Interface Modules for ISR 4000 series
- Cisco ISR series routers — 1800, 2800, and 3800 families
Not sure if this is the right cable for your module? Contact us — we'll confirm the correct part before you order.
New Original vs. Compatible — Why It Matters Here
| Feature | New Original (This) | Third-Party Compatible |
|---|---|---|
| Source | ✅ Genuine Cisco factory part | Aftermarket manufacturer |
| Connector tolerances | ✅ Exact fit for Cisco modules | May vary |
| Pinout accuracy | ✅ Verified Cisco specification | Verify before use |
| TAC / warranty support | ✅ Cisco TAC eligible | Not eligible |
| Lab / production use | ✅ Both | Lab use typical |
Bottom line: for production OOB management networks and environments where Cisco TAC support matters, the genuine part eliminates any doubt.
Ideal Use Cases
- Terminal server deployments — connect up to 8 serial devices (routers, switches, firewalls) to a single async module for centralized console access
- Out-of-band (OOB) management networks — dedicated management access that stays up when in-band paths go down
- Lab environments — CCNA, CCNP, and CCIE rack builds requiring EIA-232 serial console connections
- Data center console aggregation — consolidate serial console connections from multiple devices to a single interface card
- ISR deployment kits — replacement or spare cable for HWIC-8A/16A or NIM-16A/24A modules
Common Mistakes This Cable Prevents
- Ordering a rollover cable instead — this is not a standard console cable; it is the async breakout cable for multi-port async WAN modules specifically
- Using a compatible cable on a production OOB network — pinout variances in third-party versions can cause port assignment issues
- Ordering the wrong module cable — always verify your module part number (HWIC-8A vs NIM-16A) as they use different interface cards
Technical Specifications
- Cisco Part Number: CAB-HD8-ASYNC
- Cable Type: Asynchronous serial (EIA-232) breakout
- Connector A: 1 × 68-pin HD D-Sub (male)
- Connector B: 8 × RJ-45 (male)
- Ports: 8
- Length: 10 ft (3 meters)
- Max Data Rate: Up to 115.2 kbps per port
- Conductor: Copper
- Condition: New Original (genuine Cisco)
The Resilient Tec Guarantee
- ✅ New Original Cisco part — not refurbished, not compatible
- ✅ 58+ units in stock — same-day shipping available
- ✅ Lifetime warranty
- ✅ Talk to a real engineer if you need help confirming the right part
Related Products
- Cisco CAB-HD8-232FC — DB25 female breakout version
- Cisco CAB-HD8-232MT — DB25 male breakout version
- Cisco HWIC-8A / HWIC-16A async interface cards
- Cisco NIM-16A / NIM-24A async modules for ISR 4000