Replacement for ESR-PRE3-RF: Drop-In Alternatives We Stock
Looking for a replacement for the ESR-PRE3-RF (Cisco Performance Routing Engine)? 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 ESR-PRE3-RF
| SKU | ESR-PRE3-RF |
|---|---|
| Product | Cisco Performance Routing Engine |
| Stock status | In Stock |
| Detail page | View ESR-PRE3-RF › |
Drop-in replacements for ESR-PRE3-RF
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.
MEM-10K-CPTFL1G - Cisco 1GB CompactFlash (CF) Memory Card for C10000 Performance Routing Engine(PRE)
SKU: MEM-10K-CPTFL1G
Price: $320.17
10000-PREMEMFD64 - Cisco 64MB Flash Memory for 10000 Series Performance Routing Engine(PRE)
SKU: 10000-PREMEMFD64
Price: $371.11
ISM-SRE-300-BUN-K9 - Cisco 3900 Series Services Ready Engine (SRE) 300 ISM
SKU: ISM-SRE-300-BUN-K9
Price: $99.55
RED-PWR-FAN-674 - Cisco Redundant Power Supply for WAE-674 Wide Area Application Engine
SKU: RED-PWR-FAN-674
Price: $107.68
MEM-C6K-ATA-1-64M-TP - Cisco 64MB PCMCIA ATA Flash Memory for Catalyst 6000 / 6500 Supervisor Engine II Series
SKU: MEM-C6K-ATA-1-64M-TP
Price: $116.33
MEMC6KATA164MB - Cisco 164MB ATA Type I Flash Memory Card for Catalyst 6500 Series Supervisor Engine 2
SKU: MEMC6KATA164MB
Price: $116.33
MEM-C6K-ATA-1-64M-AP - Cisco 64MB PCMCIA ATA Flash Memory for Catalyst 6000 / 6500 Supervisor Engine II Series
SKU: MEM-C6K-ATA-1-64M-AP
Price: $116.33
MEM-C6K-CPTLC256M - Cisco 256MB CompactFlash (CF) Memory Card for Supervisor Engine 720
SKU: MEM-C6K-CPTLC256M
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.