Replacement for 3CSFP81AO: Drop-In Alternatives We Stock
Looking for a replacement for the 3CSFP81AO (3CSFP81AO - Addonics 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm LC Connector SFP Transceiver Module)? Pro Disk Network ships 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 3CSFP81AO
| SKU | 3CSFP81AO |
|---|---|
| Product | 3CSFP81AO - Addonics 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm LC Connector SFP Transceiver Module |
| Current price | $131.11 |
| Stock status | In Stock |
| Detail page | View 3CSFP81AO › |
Drop-in replacements for 3CSFP81AO
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.
TN-SFP-OC3MB1 - Transition 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm TX/1550nm RX SC Connector 2km Transceiver Module
SKU: TN-SFP-OC3MB1
Price: $301.12
45W2818AO - Addonics 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: 45W2818AO
Price: $105.11
MFEFX1AO - Addonics 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm Duplex LC Connector SFP (mini-GBIC) Transceiver Module
SKU: MFEFX1AO
Price: $117.95
45W2814AO - Addonics 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: 45W2814AO
Price: $127.88
JF833AAO - Addonics 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: JF833AAO
Price: $131.11
SFPMX1310AO - Addonics 1Gbps 1000Base-MX Multi-mode Fiber 2km 1310nm LC Connector SFP Transceiver Module
SKU: SFPMX1310AO
Price: $141.30
0231A320AO - Addonics 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: 0231A320AO
Price: $171.86
JD102AAO - Addonics 100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: JD102AAO
Price: $177.86
OC48SFPSR1AO - Addonics 2.5Gbps OC-48/STM-16 Single-mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: OC48SFPSR1AO
Price: $364.82
SFPOC12SRAO - Addonics OC-12 OC-12-SR Multi-mode Fibre 2km 1310nm LC Connector SFP Transceiver Module
SKU: SFPOC12SRAO
Price: $526.30
SFP-OC3-SR - Cisco 155Mb/s OC-3/STM-1 Multi-Mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: SFP-OC3-SR
Price: $79.66
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.