Alternative to 3C509B-TPO: Better-Value Equivalents in Stock
Comparing the 3C509B-TPO (3C509B-TPO - 3Com Etherlink 10 ISA TPO Network Interface Card ISA 1 x RJ-45 10Base-T) against alternatives? Pro Disk Network stocks 12 similar parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the 3C509B-TPO
| SKU | 3C509B-TPO |
|---|---|
| Product | 3C509B-TPO - 3Com Etherlink 10 ISA TPO Network Interface Card ISA 1 x RJ-45 10Base-T |
| Current price | $189.47 |
| Stock status | In Stock |
| Detail page | View 3C509B-TPO › |
Alternatives to 3C509B-TPO
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.
3Com 3Com 3C905B-TX-NM 3Com 3C905B-TX-NM EtherLink XL 1 x Port RJ-45 10/100Base-TX PCI Fast Ethernet Network Interface Card
SKU: 3COM 3C905B-TX-NM
Price: $92.11
3Com 3Com 3C905C-TX-M 3Com 3C905C-TX-M EtherLink XL 1 x Port RJ-45 10/100Base-TX PCI Fast Ethernet Network Interface Card
SKU: 3COM 3C905C-TX-M
Price: $121.05
0W1392 - Dell Pro/1000MT Gigabit Ethernet Server Network Interface Card Copper RJ45 (Card Only)
SKU: 0W1392
Price: $143.39
W1392 - Dell Pro/1000MT Gigabit Ethernet Server Network Interface Card Copper RJ45 (Card Only)
SKU: W1392
Price: $143.39
Dell 540-BCOS 5720 4-Ports 10/100/1000Base-T RJ-45 Gigabit Ethernet Plug-in Card Network Interface Card
SKU: 540-BCOS
Price: $173.68
X1039A-R6 - NetApp PCI Express Dual Port GbE Network Interface card Card Copper RJ-45
SKU: X1039A-R6
Price: $211.00
106-00048 - NetApp PCI Express Dual Port GbE Network Interface card Card Copper RJ-45
SKU: 106-00048
Price: $226.08
Dell 540-BBDF Broadcom BCM5719 4-Ports 1Gb/s 1000Base-T RJ-45 PCI Express 2.0 x4 Network Interface Card
SKU: 540-BBDF
Price: $54.74
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.