Alternative to X520-SR2: Better-Value Equivalents in Stock
Comparing the X520-SR2 (X520-SR2 - Intel 10GBase SR Dual Port PCI Express Server Adapter E10G42BFSR) against alternatives? Pro Disk Network stocks 12 similar Intel 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 X520-SR2
| SKU | X520-SR2 |
|---|---|
| Product | X520-SR2 - Intel 10GBase SR Dual Port PCI Express Server Adapter E10G42BFSR |
| Current price | $221.05 |
| Stock status | In Stock |
| Detail page | View X520-SR2 › |
Alternatives to X520-SR2
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.
73P2701 - IBM Intel PRO/1000 MT Dual Port Server Adapter Network Adapter - PCI-X HOT-PLUG (Standard Bracket)
SKU: 73P2701
Price: $395.34
D50868 - Intel 82571GB PRO/1000PT Dual Port RJ-45 PCI Express Server Adapter
SKU: D50868
Price: $137.63
PWLA8492MFBLK - Intel PRO/1000 MF Dual Port Server Adapter PCI Express 2 x LC 1000Base-SX
SKU: PWLA8492MFBLK
Price: $154.11
6W1YC - Dell Intel X710 Dual-Port 10 Gigabit Server Adapter Ethernet PCI Express Network Interface Card
SKU: 6W1YC
Price: $163.16
0C6609 - Dell Intel Pro 1000 PT Dual Port PCI Express Server Network Adapter
SKU: 0C6609
Price: $169.11
0W9PW4 - Dell Intel PRO/1000 PF Dual-Port Data Domain PCI-Express Server Adapter
SKU: 0W9PW4
Price: $184.07
D53756 - Intel 82571GB PRO/1000 PF Dual Port 2xLC/ 1000Full/ PCI-Express Server Adapter Card
SKU: D53756
Price: $190.00
49Y4233 - IBM I340-T2 Intel Ethernet PCI Express X4 Dual Port Server Adapter Card
SKU: 49Y4233
Price: $204.33
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.