Replacement for PB-4OC12-SON-SMIR: Drop-In Alternatives We Stock
Looking for a replacement for the PB-4OC12-SON-SMIR (PB-4OC12-SON-SMIR - Juniper 4-Port Sonet OC12/STM4 Expansion Module)? Pro Disk Network ships Juniper 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 PB-4OC12-SON-SMIR
| SKU | PB-4OC12-SON-SMIR |
|---|---|
| Product | PB-4OC12-SON-SMIR - Juniper 4-Port Sonet OC12/STM4 Expansion Module |
| Current price | $561.97 |
| Stock status | In Stock |
| Detail page | View PB-4OC12-SON-SMIR › |
Drop-in replacements for PB-4OC12-SON-SMIR
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.
PB-1OC12-SON-SMIR - Juniper 1-Port Sonet/SDH OC12/STM-4 Interface Module
SKU: PB-1OC12-SON-SMIR
Price: $370.07
PB-1OC48-SON-B-SFP - Juniper 1-Port Sonet/SDH PIC Expansion Module
SKU: PB-1OC48-SON-B-SFP
Price: $805.78
PB-1OC12-ATM-SMIR - Juniper 1-Port Singlemode ATM OC-12STM4 SMIR for M40E / M160 / T320
SKU: PB-1OC12-ATM-SMIR
Price: $398.53
I-1OC48-SON-SMIR - Juniper 1-Port 1 x OC-48/STM-16 Interface Module
SKU: I-1OC48-SON-SMIR
Price: $280.50
PB-1OC12-SON-MM - Juniper 1-Port Sonet/SDH OC-12/STM4 PIC Multimode Interface Module
SKU: PB-1OC12-SON-MM
Price: $370.07
PB-1OC48-SON-SMLR - Juniper 1-Port Sonet SDH OC-48/STM16 PIC Interface Module
SKU: PB-1OC48-SON-SMLR
Price: $853.54
PB-1OC12-SON-SFP - Juniper 1-Port Sonet/SDH OC12/STM4 Interface Module
SKU: PB-1OC12-SON-SFP
Price: $1,590.21
PC-1OC192-SON-VSR - Juniper 1-Port SONET/SDH OC192C/STM64 Interface Card
SKU: PC-1OC192-SON-VSR
Price: $242.41
IB-OC192-SON-SR2 - Juniper 1-Port Sonet STM-64/OC-192 Interface Card
SKU: IB-OC192-SON-SR2
Price: $283.34
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.