Alternative to 15305-S4.1-2-LC: Better-Value Equivalents in Stock
Comparing the 15305-S4.1-2-LC (15305-S4.1-2-LC - Cisco 2-Port STM-4 Optical Service Module Service for ONS 15305) against alternatives? Pro Disk Network stocks 12 similar Cisco 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 15305-S4.1-2-LC
| SKU | 15305-S4.1-2-LC |
|---|---|
| Product | 15305-S4.1-2-LC - Cisco 2-Port STM-4 Optical Service Module Service for ONS 15305 |
| Stock status | In Stock |
| Detail page | View 15305-S4.1-2-LC › |
Alternatives to 15305-S4.1-2-LC
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.
ONS-SI-622-L2 - Cisco 622Mb/s OC-12/STM-4 Single-Mode Fiber 80km 1550nm Duplex LC Connector SFP Transceiver Module
SKU: ONS-SI-622-L2
Price: $188.13
ONS-XC-10G-53.3 - Cisco Single-Mode 10Gbps 10GBase-DWDM OC-192/STM-64 Fiber 80km 1553.33nm Duplex LC Connector XFP Transceiver Module
SKU: ONS-XC-10G-53.3
Price: $206.32
ONS-XC-10G-EP54.1 - Cisco 10Gbps 10GBase-DWDM OC-192/STM-64 Single-mode Fiber 50km 1554.13nm Duplex LC Connector XFP Transceiver Module
SKU: ONS-XC-10G-EP54.1
Price: $232.82
ONS-XC-10G-60.6 - Cisco 10Gb/s 10GBase-DWDM OC-192/STM-64 Single-mode Fiber 80km 1560.61nm LC Connector XFP Transceiver Module
SKU: ONS-XC-10G-60.6
Price: $249.39
ONS-XC-10G-58.9 - Cisco Single-Mode 10Gbps 10GBase-DWDM OC-192/STM-64 Fiber 80km 1558.98nm Duplex LC Connector XFP Transceiver Module
SKU: ONS-XC-10G-58.9
Price: $274.75
ONS-SE-622-1490 - Cisco Single-Mode 622Mbps OC-12/STM-4 622MBase-CWDM Fiber 100km 1490nm Duplex LC Connector SFP Transceiver Module
SKU: ONS-SE-622-1490
Price: $276.32
ONS-SI-622-I1-RF - Cisco 622Mb/s OC-12/STM-4 Single-Mode Fiber 15km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: ONS-SI-622-I1-RF
Price: $281.70
ONS-XC10GEP33.4-RF - Cisco 10Gb/s 10GBase-DWDM OC-192/STM-64 Single-Mode Fiber 50km 1533.47nm Duplex LC Connector XFP Transceiver Module
SKU: ONS-XC10GEP33.4-RF
Price: $284.67
ONS-XC-10G-51.7 - Cisco Single-Mode 10Gbps 10GBase-DWDM OC-192/STM-64 Fiber 80km 1551.72nm Duplex LC Connector XFP Transceiver Module
SKU: ONS-XC-10G-51.7
Price: $324.71
ONS-SC-2G-59.7 - Cisco Single-Mode OC-48/STM-16 Fiber 80km 1559.79nm LC Connector DWDM SFP Transceiver Module
SKU: ONS-SC-2G-59.7
Price: $326.14
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.