Replacement for POSIP-OC3-50-MM: Drop-In Alternatives We Stock
Looking for a replacement for the POSIP-OC3-50-MM (POSIP-OC3-50-MM - Cisco 7500 1-Port Packet Over SONET Model 50 OC3 SDH Multi-Mode)? Pro Disk Network ships Cisco 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 POSIP-OC3-50-MM
| SKU | POSIP-OC3-50-MM |
|---|---|
| Product | POSIP-OC3-50-MM - Cisco 7500 1-Port Packet Over SONET Model 50 OC3 SDH Multi-Mode |
| Stock status | In Stock |
| Detail page | View POSIP-OC3-50-MM › |
Drop-in replacements for POSIP-OC3-50-MM
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.
Cisco PA-F/FD-MM 1-Port FDDI Full Duplex Multimode Adapter for 7200 / 7500
SKU: PA-F-FD-MM
Price: $104.62
DWDM-XFP-1530.33 - Cisco 10GBase DWDM OC-192/STM-64/10G SONET ER 40km 1550.33nm XFP Transceiver Module
SKU: DWDM-XFP-1530.33
Price: $2,655.96
DWDM-XFP-1550.12 - Cisco 10GBase DWDM OC-192/STM-64/10G SONET ER 40km 1550.12nm XFP Transceiver Module
SKU: DWDM-XFP-1550.12
Price: $2,655.96
DWDM-XFP-1550.92 - Cisco 10GBase DWDM OC-192/STM-64/10G SONET ER 40km 1550.92nm XFP Transceiver Module
SKU: DWDM-XFP-1550.92
Price: $2,655.96
MEM-RSP16-FLD128M - Cisco 128MB Flash Memory Card for 7500 Series Router
SKU: MEM-RSP16-FLD128M
Price: $116.33
MEMRSP8FLC32MA - Cisco 32MB ATA Flash Memory Card for 7500 Rsp8 Series
SKU: MEMRSP8FLC32MA
Price: $116.33
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.