Replacement for 655-0040-03: Drop-In Alternatives We Stock
Looking for a replacement for the 655-0040-03 (655-0040-03 - 3Com NBX 100 Digital Line Card T1)? 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 655-0040-03
| SKU | 655-0040-03 |
|---|---|
| Product | 655-0040-03 - 3Com NBX 100 Digital Line Card T1 |
| Current price | $203.75 |
| Stock status | In Stock |
| Detail page | View 655-0040-03 › |
Drop-in replacements for 655-0040-03
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.
655-0092-03R - 3Com NBX 100 4-Port Analog Line Trunk Card LS Loop Start
SKU: 655-0092-03R
Price: $216.36
04G185021203DE - Dell 250-Watts ATX Power Supply for Inspiron Slim Line SFF 530S 531S 537s 540s / Vostro Slim Line SFF 200 200s 220s 400
SKU: 04G185021203DE
Price: $153.92
Cisco Line Card Classic - Switch - 6 x 10/100/1000 (PoE) + 6 x shared SFP - plug-in module - refurbished for Catalyst 4503, 4506, 4507R, 4510R
SKU: WS-X4506-GB-T-RF
Price: $1,720.49
655-0336 - Western Digital 850MB 5400RPM IDE/ATA 128KB Cache 3.5-inch Hard Drive
SKU: 655-0336
Price: $313.78
MK1032GAX - Toshiba 100GB 5400RPM 16MB Cache ATA/IDE-100 44-Pin 2.5-inch Ultra- Slim Line 9.5MM Laptop Hard Drive
SKU: MK1032GAX
Price: $128.84
370-2160-03 - Sun 100-240V AC 16.8A 50-60Hz AC Line Filter Module for Enterprise 450
SKU: 370-2160-03
Price: $473.68
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.