Buy or wait? Tracking began 2026-11-05, so there isn't enough history for a buy/wait call yet. Today the cheapest clean listing is 59% under the typical one.
Cheapest HPE 500W Flex Slot Platinum PSU (720478-B21) listings right now
| Listing | Condition | Price + ship | ||
|---|---|---|---|---|
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720478-B21 HP 500W Flex Slot Platinum Power Supply Kit 723594-001 754377-001 Buy It Now offers | Used | $14.89 free ship | View on eBay |
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HPE 754377-001 Gen9 Gen10 500W FS 80+ Platinum Hot Plug Power Supply 720478-B21 Buy It Now | Used | $14.94 free ship | View on eBay |
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754377-001 723594-001 720478-B21 HPE 500W 80+ PLATINUM HOT PLUG POWER SUPPLY Buy It Now offers | Used | $14.99 free ship | View on eBay |
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HP 500w 80+ Platinum PSU HSTNS-PL40 723594-001 723595-201 754377-001 720478-B21 Buy It Now offers | Used | $15.00 free ship | View on eBay |
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HPE 500W Power Supply 754377-001 723595-101 HSTNS-PD40 DL380 DL360 Gen9 Gen10 Buy It Now | Used | $23.59 | View on eBay |
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HP 500W PSU 720478-B21 754377-001 Gen9 Flex Slot Platinum Hot-Plug Buy It Now offers | Used | $25.00 free ship | View on eBay |
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720478-B21 I HP 500W Flex Slot Platinum Hot Plug Power Supply 754377-001 Buy It Now offers | Used | $25.00 free ship | View on eBay |
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HP 500W Server Power Supply DL380 ML350T G9 723595-501 723594-001 720478-B21 Buy It Now offers | Used | $25.92 free ship | View on eBay |
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HPe DL360 G9 500w Platinum PSU 723594-001 723595-101 754377-001 720478-B21 Buy It Now | Used | $26.72 | View on eBay |
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HP Gen9 500W Flex Slot Platinum Hot-Plug PSU Kit 720478-B21 754377-001 Buy It Now offers | Used | $27.00 free ship | View on eBay |
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720478-B21/754377-001/723595-101/723594-001-DPS-500AB-13A/HP500W FS POWER SUPPLY Buy It Now offers | Used | $31.19 sale: was $59.99, −48% free ship | View on eBay |
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HPE 500W 80+ Platinum PSU 754377-001 720478-B21 ProLiant DL360 ML350 Gen9 Buy It Now offers | Open box | $34.88 free ship | View on eBay |
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720478-B21/754377-001/723595-501/723594-001/HSTNS-PC40-HP 500W FS POWER SUPPLY Buy It Now offers | Open box | $36.39 sale: was $69.99, −48% free ship | View on eBay |
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HPE 500W Flex Slot Platinum Hot Plug Power Supply 754377-001 723594-001 Gen9 Buy It Now offers | Used | $36.64 | View on eBay |
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HPE 754377-001 723594-001 720478-B21 500W Platinum Redundant Power Supply PSU Buy It Now offers | Used | $39.99 free ship | View on eBay |
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HPE 723594-001 500W Flex Slot Platinum Hot Plug Power Supply for DL360 G9 Buy It Now offers | Used | $45.00 free ship | View on eBay |
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HPE 500W 80 PLUS Platinum PSU HSTNS-PD40 720478-B21 754377-001 Buy It Now offers | Used | $51.00 | View on eBay |
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HP 720478-B21 500W Power Supply Kit Buy It Now offers | Used | $51.26 | View on eBay |
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HP 720478-B21 500W Flex Slot Power Supply Kit for ProLiant G9 Buy It Now offers | Open box | $64.98 | View on eBay |
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HPE 720478-B21 NEW 500W Flex-Slot Platinum Power Supply for DL380 360 ML350 G9 Buy It Now offers | Open box | $70.42 sale: was $88.03, −20% free ship | View on eBay |
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HPE 720478-B21 500W Flex-Slot Platinum Power Supply for DL380 G9 360 G9 ML350 G9 Buy It Now offers | Used | $74.73 sale: was $93.41, −20% free ship | View on eBay |
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720478-B21 I HP 500W Flex Slot Platinum HotPlug Power Supply 754377-001 OPEN BOX Buy It Now offers | Open box | $85.00 free ship | View on eBay |
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HP HPE 500W FS Plat Hot plug power supply kit 500 Watt Platinum Power supply 720 Buy It Now | New | $99.99 free ship | View on eBay |
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HP 754377-001 Gen9 500W Flex Slot Platinum Hot Plug Power Supply PSU NEW SEALED Buy It Now offers | New | $116 | View on eBay |
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NEW HP 720478-B21 500W FLEX SLOT PLATINUM HP POWER SUPPLY Buy It Now offers | Open box | $200 free ship | View on eBay |
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Where today's prices sit
25 live listings by price (item + shipping). The highlighted bar is the cheapest band.
Price history starts 2026-11-05 — the chart appears after the second daily snapshot.
Market read
Of 25 Buy It Now listings, 23 used (from $14.89), 2 new (from $99.99). The cheapest used copy is 85% below the cheapest new one. 72% ship free; the rest add $9.99 shipping at the median. The middle half of asking prices runs $25.00 to $64.98, so anything under $25.00 is in the cheapest quarter. Lowest we have recorded since 2026-11-05: $14.89 on 2026-11-05 — today matches it.
Asking prices of US eBay listings including shipping, as of 2026-11-05 (checked twice a day); we earn a commission on purchases through these links; parts, broken units and accessories are filtered out. How we price.
Head to head
- HPE 500W Flex Slot Platinum PSU (720478-B21) vs Dell iDRAC7 Enterprise card
- HPE 500W Flex Slot Platinum PSU (720478-B21) vs Dell R640/R740 750W PSU
Compare
- Dell R620/R720 750W PSU $17.99
- Dell iDRAC7 Enterprise card $14.49
- Dell R620/R720 1100W PSU $19.95
- Dell R630/R730 750W PSU $12.89
- Dell R640/R740 750W PSU $16.95
- Dell R640/R740 1100W PSU $1,285
- HPE 800W Flex Slot Platinum PSU (720479-B21) $24.95
- HPE 96W Smart Storage Battery (727258-B21) $31.92
- HPE 96W Smart Storage Battery (P01366-B21) $23.98
- Dell 2.5in drive tray (R620/R720/R630/R730) $4.99