Replacement for 591973-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 591973-B21 (591973-B21 - HP Virtual Connect Flex-10 Ethernet Module Enterprise Edition for c-Class BL-c7000)? Pro Disk Network ships HP 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 591973-B21
| SKU | 591973-B21 |
|---|---|
| Product | 591973-B21 - HP Virtual Connect Flex-10 Ethernet Module Enterprise Edition for c-Class BL-c7000 |
| Current price | $12,193.47 |
| Stock status | In Stock |
| Detail page | View 591973-B21 › |
Drop-in replacements for 591973-B21
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.
662048-B21 - HP Virtual Connect Flex-10/10D Module Enterprise Edition for ProLiant BLc7000 Option
SKU: 662048-B21
Price: $5,174.38
455882-001 - HP Virtual Connect Flex-10 10GB Ethernet Module for C-class Bladesystem
SKU: 455882-001
Price: $357.89
708052-001 - HP Virtual Connect Flex-10 10GB Ethernet Module for C-class Bladesystem
SKU: 708052-001
Price: $357.89
638527-B21 - HP Virtual Connect Flex 10/10d Module For C-Class Bladesystem Server
SKU: 638527-B21
Price: $263.16
639852-001 - HP Virtual Connect Flex-10/10d Module for C-class Bladesystem
SKU: 639852-001
Price: $263.16
638526-B21 - HP Virtual Connect Flex-10/10d Module For C-class Bladesystem 63
SKU: 638526-B21
Price: $1,310.53
869917-001 - HP Virtual Connect Flex 24-Port 10GB V2 Board for C-Class BladeSystem
SKU: 869917-001
Price: $2,988.41
399593-B21 - HP 1/10GB/s Virtual Connect Ethernet Module 8 x 10/100/1000Base-T 2 x 10GBase-CX4
SKU: 399593-B21
Price: $71.58
447103-001 - HP 1/10Gb-F Virtual Connect Ethernet Module for C-class Bladesystem
SKU: 447103-001
Price: $71.58
443756-B21 - HP 10GBase-SR 850nm XFP Virtual Connect Ethernet Transceiver Module
SKU: 443756-B21
Price: $128.42
443763-001 - HP 850nm 10GBase-SR XFP Virtual Connect Ethernet Transceiver Module
SKU: 443763-001
Price: $128.42
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.