Replacement for CATx-DB9: Drop-In Alternatives We Stock
Looking for a replacement for the CATx-DB9 (Black CATx DB9 Box 4000 ft Extended Range 2 x Ports Layer-2 Managed Line Driver - Network (RJ-45) -)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the CATx-DB9
| SKU | CATx-DB9 |
|---|---|
| Product | Black CATx DB9 Box 4000 ft Extended Range 2 x Ports Layer-2 Managed Line Driver - Network (RJ-45) - |
| Current price | $712.64 |
| Stock status | In Stock |
| Detail page | View CATx-DB9 › |
Drop-in replacements for CATx-DB9
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
IC408A-R2 - Black Box 1Gb/s 1000Base-T 4 x Ports CATx/LAN USB 2.0 Extender
SKU: IC408A-R2
Price: $618.95
Black LGB2126A Black Box LGB2126A LGB2000 Series 24 x Ports 1GBase-T + 2 x Ports SFP (mini-GBIC) Layer 2 1U Rack-Mountable Gigabit Ethernet Network Switch
SKU: LGB2126A
Price: $387.37
Black LPB5052A Black Box LPB5052A LPB5000 48x Ports PoE+ 1GBase-T 4x Ports Combo SFP+ Layer 2+ Managed Rack-Mountable Gigabit Ethernet Network Switch
SKU: LPB5052A
Price: $2,815.79
Black LGB6050A Black Box LGB6050A 48x Ports 1GBase-T 4x Ports Shared SFP 1U Rack-mountable Layer 3 Managed Gigabit Ethernet Network Switch
SKU: LGB6050A
Price: $4,121.05
F5 F5 Networks F5-4000 F5 Networks F5-4000 BIG-IP 4000 Series 8 x Ports 10Gigabit Ethernet Load Balancing Switch
SKU: F5 NETWORKS F5-4000
Price: $415.39
Black LB9215A Black Box LB9215A 8x Ports 100Base-FX Express Modular 1U Rack Mount Layer2 Ethernet Switch
SKU: LB9215A
Price: $1,147.37
IE-4000-8S4G-E - Cisco Industrial Ethernet 4000 RJ-45 8 x Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-8S4G-E
Price: $803.79
IE-4000-8GT8GP4G-E - Cisco 4000 PoE RJ-45 12 X + + Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-8GT8GP4G-E
Price: $2,601.74
IE-4000-4GS8GP4G-E - Cisco 4000 PoE RJ-45 12 X + + Ports 1000Base-X + 4 x SFP Layer 3 Managed Gigabit Ethernet Switch
SKU: IE-4000-4GS8GP4G-E
Price: $6,126.25
LBS005A - Black Box 100Mb/s 10/100Base-TX 5 x Ports Layer-2 Managed Fast Ethernet Corporation Ethernet Switch
SKU: LBS005A
Price: $128.42
LPJ001A-T-R2 - Black Box 1Gb/s 10/100/1000Base-T PoE+ 2 x Ports Layer-2 Managed Gigabit Ethernet
SKU: LPJ001A-T-R2
Price: $163.16
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.