HP ProLiant DL380 Gen9 Parts — Every Component with HP Part Numbers
Published April 7, 2026 · 14 min read · By Pro Disk Network Team
Complete HP DL380 Gen9 parts guide — system boards, PSUs, Smart Array P440, riser cards, rail kits, fans, and SFF drive caddies with HP spare part numbers.
Topics: HP, ProLiant, DL380, Gen9, Server Parts, Smart Array
HP ProLiant DL380 Gen9
The HP ProLiant DL380 Gen9 was launched in 2014. In 2026, it remains massively popular on the refurbished market — reliable, well-supported, and incredibly well-priced.
Pro Disk Network stocks 231 HP DL380 Gen9 parts.
DL380 Gen9 Specifications
| Spec | Details |
|---|
| Generation | Gen9 (2014-2017) |
| Form Factor | 2U Rack Mount |
| CPU | Dual Intel Xeon E5-2600 v3/v4 (LGA2011-3) |
| Max RAM | 3TB (24x 128GB DDR4 LRDIMM) |
| Drive Bays | 8x SFF, 16x SFF, or 24x SFF + 2x rear SFF |
| RAID | Smart Array P440ar, P840, H240ar |
| Network | HP 331i 4-port 1GbE (embedded) |
| Power | Dual 500W, 800W, or 1400W Flex Slot |
| iLO | iLO 4 |
Key Components
System Boards (Motherboards)
| HP Part # | Description | Price |
|---|
| 729842-002 | DL380 Gen9 System Board | $100-180 |
| 843307-001 | DL380 Gen9 System Board (v2) | $110-190 |
Power Supplies (Flex Slot)
| HP Part # | Wattage | Price |
|---|
| 720478-B21 / 723594-001 | 500W | $22 |
| 720479-B21 / 754381-001 | 800W | $35 |
| 733427-001 | 1400W | $75 |
RAID Controllers (Smart Array)
| Model | HP Part # | Cache | Price |
|---|
| P440ar | 726736-B21 | 2GB FBWC | $48 |
| P440 | 749797-001 | 4GB FBWC | $42 |
| P840 | 726897-B21 | 4GB FBWC | $80-120 |
| H240ar | 726757-B21 | None (HBA) | $25-40 |
Riser Cards
| HP Part # | Position | Slots | Price |
|---|
| 729804-001 | Primary (Riser 1) | 3x PCIe | $25 |
Rail Kits
| HP Part # | Type | Price |
|---|
| 733660-B21 | 2U SFF Easy Install Rail Kit | $42 |
| 720863-B21 | 2U Ball Bearing Rail Kit | $40-55 |
Other Parts
- Fans: 777286-001 hot-swap fan module — $12-20
- Heatsinks: 777290-001 heatsink assembly — $15-30
- Drive Caddies: 651687-001 2.5" SFF SC caddy — $5-10
- Bezels: DL380 Gen9 front bezel with key — $15-30
- Cache Batteries: 727258-B21 96W Smart Storage Battery — $15-25
DL380 Gen9 vs DL380 Gen10
| Feature | Gen9 | Gen10 |
|---|
| CPU | E5-2600 v3/v4 (max 22 cores) | Scalable Xeon (max 28 cores) |
| RAM | DDR4-2400 (3TB max) | DDR4-2666 (3TB max) |
| NVMe | Up to 6 bays (Express Bay kit) | Full NVMe support |
Verdict: Gen9 is the value king. Gen10 is only worth the premium if you need more than 22 cores per socket or full NVMe support.
Browse all HP DL380 Gen9 parts | DL380 Gen9 system board | DL380 Gen9 power supply | Smart Array P440