Replacement for C6840-X-750W-DC: Drop-In Alternatives We Stock
Looking for a replacement for the C6840-X-750W-DC (C6840-X-750W-DC - Cisco Catalyst 6840-X Power Supply DC-750W -40 V DC, -72 V DC for C6816 C6824 C6840)? Pro Disk Network ships Cisco 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 C6840-X-750W-DC
| SKU | C6840-X-750W-DC |
|---|---|
| Product | C6840-X-750W-DC - Cisco Catalyst 6840-X Power Supply DC-750W -40 V DC, -72 V DC for C6816 C6824 C6840 |
| Current price | $1,821.47 |
| Stock status | In Stock |
| Detail page | View C6840-X-750W-DC › |
Drop-in replacements for C6840-X-750W-DC
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.
10-2672-01 - Cisco Multi-mode QSFP-40G-SR4 850nm 150m 40Gb/s Fiber MTP/MPO QSFP+ Transceiver Module
SKU: 10-2672-01
Price: $79.66
10-2672-02 - Cisco 40Gb/s 40GBase-SR4 Multi-Mode Fiber 850nm MPO Connector QSFP+ Transceiver Module
SKU: 10-2672-02
Price: $87.63
10-2672-03 - Cisco Multi-mode 40Gbps 40GBase-SR4 Fiber 150m 850nm MPO-12 Connector QSFP+ Transceiver Module
SKU: 10-2672-03
Price: $206.32
UCS-CPU-E72850 - Cisco 2.00GHz 24 MB SmartCache 6.40GT/s QPI LGA1567 Intel Xeon E7-2850 10 Core Processor
SKU: UCS-CPU-E72850
Price: $265.21
UCS-CPU-E72870 - Cisco 2.40GHz 6.4GT/s QPI 30MB SmartCache Socket LGA1567 Intel Xeon E7-2870 10-Core Processor
SKU: UCS-CPU-E72870
Price: $420.00
E100S-HDDSATA1T-RF - Cisco 1TB 7200RPM SATA 6Gb/s 2.5-inch Hard Drive for UCS E140S M1
SKU: E100S-HDDSATA1T-RF
Price: $537.01
E100D-HDD-SATA1T - Cisco 1TB 7200RPM SATA 6Gb/s Hard Drive for UCS E140D M1
SKU: E100D-HDD-SATA1T
Price: $571.83
UCSCPUE72860 - Cisco 2.26GHz 6.40GT/s QPI 24MB L3 Cache Socket LGA1567 Intel Xeon E7-2860 10 Core Processor
SKU: UCSCPUE72860
Price: $681.42
UCSCPUE72850 - Cisco 2.00GHz 6.40GT/s QPI 24MB L3 Cache Socket LGA1567 Intel Xeon E7-2850 10 Core Processor
SKU: UCSCPUE72850
Price: $976.51
E100S-HDD-SATA1T - Cisco 1TB 7200RPM SATA 6Gb/s 2.5-inch Hard Drive for UCS E140S M1
SKU: E100S-HDD-SATA1T
Price: $1,198.42
UCS-HD6T12GAK9 - Cisco 6TB 7200RPM SAS 12Gb/s 3.5-inch Hard Drive for UCS C240 M4 Rack Server
SKU: UCS-HD6T12GAK9
Price: $1,825.21
DWDM-XFP-1547.72 - Cisco 10GBase DWDM OC-192/STM-64/10G SONET ER 40km 1547.72nm XFP Transceiver Module
SKU: DWDM-XFP-1547.72
Price: $2,655.96
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.