Replacement for 594-6603: Drop-In Alternatives We Stock
Looking for a replacement for the 594-6603 (594-6603 - Sun 10Gbps QDR Ethernet QSFP Transceiver)? 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 594-6603
| SKU | 594-6603 |
|---|---|
| Product | 594-6603 - Sun 10Gbps QDR Ethernet QSFP Transceiver |
| Current price | $591.11 |
| Stock status | In Stock |
| Detail page | View 594-6603 › |
Drop-in replacements for 594-6603
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.
IS36-SWITCH-QDR-MG - Mellanox MTS3600Q-1BNC InfiniScale iV QDR 36-Port 36x QSFP InfiniBand Managed Switch
SKU: IS36-SWITCH-QDR-MG
Price: $5,183.61
QFX-QSFP-DAC-1M - Juniper 1M 40Gb/s QSFP+ to QSFP+ 10 Gigabit Ethernet Direct Attach Copper Twinax Cable
SKU: QFX-QSFP-DAC-1M
Price: $184.21
XLDACBL3 - Intel Ethernet QSFP+ Twinaxial Cable, 3 Meters - Twinaxial for Network Device - 9.84 FT - 1 X QSFP+ Network - 1 X QSFP+ Network
SKU: XLDACBL3
Price: $271.75
XLDACBL5 - Intel Ethernet QSFP+ Twinaxial Cable, 5 Meters - Twinaxial for Network Device - 16.40 FT - 1 X QSFP+ Network - 1 X QSFP+ Network
SKU: XLDACBL5
Price: $446.14
QSFP-XSR4 - Arista 40GBase QSFP SR4 300M 850nm QSFP+ Transceiver Module
SKU: QSFP-XSR4
Price: $1,551.25
40G-QSFP-IR4 - Brocade 40GBase QSFP IR4 1km Four 10Gbps CWDM wavelengths: 1260 1360nm QSFP+ Transceiver
SKU: 40G-QSFP-IR4
Price: $2,621.51
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.