Replacement for 728993-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 728993-B21 (728993-B21 - HP 571FLR-SFP+ - Network Adapter - PCI Express 2 X8 Low Profile - 10 Gigabit SFP+ X 2 - for PROLIANT DL360P GEN8, DL380P GEN8)? 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 728993-B21
| SKU | 728993-B21 |
|---|---|
| Product | 728993-B21 - HP 571FLR-SFP+ - Network Adapter - PCI Express 2 X8 Low Profile - 10 Gigabit SFP+ X 2 - for PROLIANT DL360P GEN8, DL380P GEN8 |
| Current price | $552.47 |
| Stock status | In Stock |
| Detail page | View 728993-B21 › |
Drop-in replacements for 728993-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.
HP CN1100R StoreFabric 2 x Ports PCI Express x8 Optical Fiber Low Profile Converged Network Adapter
SKU: CN1100R
Price: $71.58
HPE 840138-001 2-Ports 10GBase-T PCI-Express 3.0 x4 Low-Profile Network Adapter for ProLiant DL360 / DL380 Gen10
SKU: 840138-001
Price: $128.42
HPE 817745-B21 2-Ports 10GBase-T PCI-Express 3.0 x4 Low-Profile Network Adapter for ProLiant DL360 / DL380 Gen10
SKU: 817745-B21
Price: $128.42
HPE P02012-B21 1-Ports 100GB/s 100GBase-X QSFP28 PCI Express 3.0 X8 Low Profile Plug-in Card Network Adapter
SKU: P02012-B21
Price: $349.47
HPE P24249-001 Infiniband HDR100/Ethernet 2-Ports 100GBase-X QSFP56 PCI-Express 4.0 x16 Low-Profile Network Adapter
SKU: P24249-001
Price: $608.42
HPE P24752-001 Infiniband HDR100/Ethernet 2-Ports 100GBase-X QSFP56 PCI-Express 4.0 x16 Low-Profile Network Adapter
SKU: P24752-001
Price: $608.42
HPE 593743-001 HP 593743-001 NC365T 4x Ports 1000Base-T PCI-Express 2.0 x4 Low Profile Ethernet Server Adapter
SKU: 593743-001
Price: $160.00
HPE P08355-001 InfiniBand HDR100/Ethernet 2-Ports 100GbEPCI-Express 3.0 x16 Low-Profile Gigabit Ethernet Network Adapter
SKU: P08355-001
Price: $549.47
313881-B21 - HP NC7170 Dual Port PCI-X 10T 100TX 1000T Gigabit Adapter (Low Profile)
SKU: 313881-B21
Price: $71.58
NC7170 - HP NC7170 Dual Port PCI-X 10T 100TX 1000T Gigabit Adapter (Low Profile)
SKU: NC7170
Price: $71.58
313586-001 - HP NC7170 Dual Port PCI-X 10T 100TX 1000T Gigabit Adapter (Low Profile)
SKU: 313586-001
Price: $71.58
313559-001 - HP NC7170 Dual Port PCI-X 10T 100TX 1000T Gigabit Adapter (Low Profile)
SKU: 313559-001
Price: $71.58
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.