Replacement for 39478: Drop-In Alternatives We Stock
Looking for a replacement for the 39478 (39478 - Cables To Go 2Gbps 1000Base-SX Multi-mode Fiber 500m 850nm Transmitter Wavelength 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 39478
| SKU | 39478 |
|---|---|
| Product | 39478 - Cables To Go 2Gbps 1000Base-SX Multi-mode Fiber 500m 850nm Transmitter Wavelength LC Connector SFP Transceiver Module |
| Current price | $112.89 |
| Stock status | In Stock |
| Detail page | View 39478 › |
Drop-in replacements for 39478
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.
39481 - Cables To Go 40Gbps 40GBase-SR4 Multi-mode Fiber 850nm Wavelength Fiber Optic QSFP+ Transceiver Module
SKU: 39481
Price: $113.68
39462 - Cables To Go 10Gbps 10GBase-LR Small Form-factor Pluggable 10Gigabit Ethernet 1310nm Transmitter Wavelength LC Connector DDM ) up to 10km reach SFP+ Transceiver Module
SKU: 39462
Price: $292.75
39466 - Cables To Go 4.25Gbps 500m 850nm Multi-mode Fiber Duplex LC Connector SFP Transceiver Module
SKU: 39466
Price: $137.25
FTR-1619-59 - Finisar 1.25Gbps 1000Base-CWDM Single-mode Fiber 120km 1590nm Transmitter Wavelength SC Connector GBIC Transceiver Module
SKU: FTR-1619-59
Price: $188.30
FTR-1619-53 - Finisar 1.25Gbps 1000Base-CWDM Single-mode Fiber 120km 1530nm Transmitter Wavelength SC Connector GBIC Transceiver Module
SKU: FTR-1619-53
Price: $200.76
FTR-1619-55 - Finisar 1.25Gbps 1000Base-CWDM Single-mode Fiber 120km 1550nm Transmitter Wavelength SC Connector GBIC Transceiver Module
SKU: FTR-1619-55
Price: $200.76
FTR-1619-57 - Finisar 1.25Gbps 1000Base-CWDM Single-mode Fiber 120km 1570nm Transmitter Wavelength SC Connector GBIC Transceiver Module
SKU: FTR-1619-57
Price: $200.76
FTR-1619-61 - Finisar 1.25Gbps 1000Base-CWDM Single-mode Fiber 120km 1610nm Transmitter Wavelength SC Connector GBIC Transceiver Module
SKU: FTR-1619-61
Price: $278.80
SBCEFCSWFS4 - Intel Short Wavelength 4Gbps Multi-mode Fiber 850nm Fiber Channel Duplex LC Connector SFP (mini-GBIC) Optical Transceiver Module
SKU: SBCEFCSWFS4
Price: $202.18
QSFP40GSR4AO - Addonics 40Gbps 40GBase-SR4 Multi-mode Fiber 850nm Wavelength Fiber Optic QSFP+ Transceiver Module
SKU: QSFP40GSR4AO
Price: $675.03
Finisar FTLF8524P2BNL-MD(PT) 4.25Gbps 1000Base-SX Multi-mode Fiber 500m 850nm Duplex LC Connector SFP Transceiver Module
SKU: FTLF8524P2BNL-MD-PT
Price: $75.79
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.