Alternative to FCMJ-8521-3: Better-Value Equivalents in Stock
Comparing the FCMJ-8521-3 (FCMJ-8521-3 - Finisar Corporation 1.25Gb/s 1000Base-T 100m Copper Connector SFP mini-GBIC Transceiver Module) against alternatives? Pro Disk Network stocks 12 similar parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the FCMJ-8521-3
| SKU | FCMJ-8521-3 |
|---|---|
| Product | FCMJ-8521-3 - Finisar Corporation 1.25Gb/s 1000Base-T 100m Copper Connector SFP mini-GBIC Transceiver Module |
| Current price | $68.42 |
| Stock status | In Stock |
| Detail page | View FCMJ-8521-3 › |
Alternatives to FCMJ-8521-3
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-HC - Finisar Corporation 1.25Gb/s 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: FCLF-8521-3-HC
Price: $222.55
FCMJ-8521-3-ACC - Accortec 1.25Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: FCMJ-8521-3-ACC
Price: $135.93
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-ACC - Accortec 1Gb/s 1000Base-T Copper 100m RJ-45 Connector SFP (mini-GBIC) Transceiver Module
SKU: FCLF-8521-3-ACC
Price: $182.37
FCLF8521P2BTL - Finisar Corporation 1000Base-T 100m Copper SFP Transceiver Module
SKU: FCLF8521P2BTL
Price: $231.58
FCLF-8521-3 - Finisar Corporation 1.5Gb/s 1000Base-T SFP mini-GBIC Transceiver Module
SKU: FCLF-8521-3
Price: $68.42
H8521-3-H3C - Finisar Corporation 1.25Gb/s 100m Connector SFP Transceiver Module
SKU: H8521-3-H3C
Price: $114.59
FCLF-8520-3 - Finisar 1.25Gbps 1000Base-T Copper 100m RJ-45 Connector SFP Transceiver Module
SKU: FCLF-8520-3
Price: $136.74
FCLF8520P2BTL - Finisar 1.25Gb/s 1000Base-T Copper 100m 850nm RJ45 Connector SFP Transceiver Module
SKU: FCLF8520P2BTL
Price: $185.57
FTLF8529P3BNV - Finisar Corporation 16Gb/s 850nm 100m SFP+ Optical Transceiver Module
SKU: FTLF8529P3BNV
Price: $401.97
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.