Replacement for FCMJ-8521-3-ACC: Drop-In Alternatives We Stock
Looking for a replacement for the FCMJ-8521-3-ACC (FCMJ-8521-3-ACC - Accortec 1.25Gbps 1000Base-T Copper 100m RJ-45 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 FCMJ-8521-3-ACC
| SKU | FCMJ-8521-3-ACC |
|---|---|
| Product | FCMJ-8521-3-ACC - Accortec 1.25Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module |
| Current price | $135.93 |
| Stock status | In Stock |
| Detail page | View FCMJ-8521-3-ACC › |
Drop-in replacements for FCMJ-8521-3-ACC
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.
FCMJ-8521-3-AO - Finisar 1.25Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: FCMJ-8521-3-AO
Price: $138.03
FCLF-8521-3-ACC - Accortec 1Gb/s 1000Base-T Copper 100m RJ-45 Connector SFP (mini-GBIC) Transceiver Module
SKU: FCLF-8521-3-ACC
Price: $182.37
FCMJ-8520-3 - Finisar 1.25Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: FCMJ-8520-3
Price: $134.01
FCL-8521-3 - Finisar 1.25Gb/s 1000Base-T Copper 100m RJ-45 Connector GBIC Transceiver Module
SKU: FCL-8521-3
Price: $191.04
FCLF-8521-3-HC - Finisar Corporation 1.25Gb/s 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: FCLF-8521-3-HC
Price: $222.55
FCLF8522P2BTL-ACC - Accortec 1.25Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: FCLF8522P2BTL-ACC
Price: $115.46
01-SSC-9791-ACC - Accortec 1Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: 01-SSC-9791-ACC
Price: $119.37
3CSFP93-ACC - Accortec 1Gbps 1000Base-T Copper 100m 1310nm RJ-45 Connector SFP Transceiver Module
SKU: 3CSFP93-ACC
Price: $120.53
SFP-1000BASE-T-ACC - Accortec 1Gb/s 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: SFP-1000BASE-T-ACC
Price: $120.95
00FE333-ACC - Accortec 1Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: 00FE333-ACC
Price: $121.05
3CGBIC93-ACC - Accortec 1Gbps 1000Base-T Copper 100m RJ-45 Connector GBIC Transceiver Module
SKU: 3CGBIC93-ACC
Price: $122.22
81Y1618-ACC - Accortec 1Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: 81Y1618-ACC
Price: $122.39
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.