518194-004 is the HPE assembly part number for 300GB 2.5" SFF 6G Dual Port SAS 10K RPM Hot Plug Hard Drive. If you are reading this number off a drive label or from an HPE PartSurfer lookup, it identifies a 300GB 10,000 rpm SAS hard drive in the 2.5-inch low profile form factor, running a 6 Gb/s dual port SAS interface. The drive is a hot-plug unit for server and storage use and ships with its hot-swap tray attached. Physical dimensions are 0.591" high and 2.75" wide, matching standard SFF drive bays.
HPE Option Part #: 507127-B21
HPE Spare Part #: 507284-001
HPE Model #: DG0300FAMWN, DG0300FARVV, EG000300JWBHR, EG000300JWEBF, EG000300JWFUQ, EG0300FARTT, EG0300FAWHV, EG0300FAWJD, EG0300FBDBR, EG0300FBDSP, EG0300FBLSE, EG0300FBVFL, EG0300FCSPH, EG0300FCVBF, EG0300JEHLV, EG0300JFCKA
HPE Assembly Part #: 507119-002, 507119-004, 518011-002, 518194-002, 518194-004, 597609-001, 599476-001, 619286-001, 641552-001, 689287-001, 693569-001
PRODUCT SPECIFICATIONS FOR 518194-004:
- Hard Drive Capacity: 300GB
- Generation: SAS
- External Data Transfer Rate: 6 Gb/s
- Rotational Speed: 10,000 rpm
- Form Factor (Drive): 2.5-inch low profile
- Interface: SAS (Serial Attached SCSI)
- Data Storage Device Type: SAS (Serial Attached SCSI) device
- Hard Drive Device Type: Hard drive for server/storage unit (Hot-plug)
- Height: 0.591"
- Width: 2.75"
- Hotswap Tray: Included (Attached)
COMPATIBLE WITH:
PROLIANT BL SERIES
PROLIANT DL SERIES
PROLIANT SL SERIES
PROLIANT WS SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
FREQUENTLY ASKED QUESTIONS ABOUT 518194-004
What is the difference between 518194-004, 507127-B21 and 507284-001?
They identify the same physical 300GB 6G SAS 10K SFF drive under different HPE numbering schemes. This page, 518194-004, is an assembly part number: the number HPE assigns to the built drive plus tray as it leaves manufacturing, and the number most often printed on the drive label. 507127-B21 is the option part number, the orderable configure-to-order or retail SKU. 507284-001 is the spare part number used for service replacement.
I see a different number on my drive label. Is it still the same drive?
Likely yes. This family carries ten assembly revisions besides this page, 16 OEM drive models, two generic part numbers and one alternate part number, all listed in the cross-reference block on this page. An assembly part number identifies the completed drive and tray assembly. An OEM model number is the drive manufacturer's own product code, printed on the label alongside the HPE numbering. All of them describe the same 300GB 6G SAS 10K SFF unit.
What are the drive's electrical and mechanical specifications?
Capacity is 300GB. The interface is SAS (Serial Attached SCSI), dual port, with an external data transfer rate of 6 Gb/s. Rotational speed is 10,000 rpm. The form factor is 2.5-inch low profile SFF, measuring 0.591" in height and 2.75" in width. It is classified as a hot-plug hard drive for server and storage units, and the hot-swap tray is included and already attached.
Which HPE servers accept this drive?
Supported platforms include BL20p G4, BL25p G2, BL45p G2, BL460c G1/G5/G6/G7, BL465c G1/G5/G6/G7, BL480c, BL620c G7, BL680c G5/G7, BL685c G1/G5/G6/G7, BL860c, BL870c, DL1000, DL120 G7, DL160 G6, DL160se G6, DL165 G7, DL170e G6, DL170h G6, DL180 G6, DL320 G6, DL360 G4p/G5/G6/G7, DL365 G1/G5, DL370 G6, DL380 G4/G5/G6/G7, DL385 G1/G2/G5/G5p/G6/G7, DL580 G3/G4/G5/G7, DL585 G1/G2/G5/G6/G7, DL785 G5/G6, DL980 G7, ML350 G5/G6, ML370 G4/G5/G6, ML570 G3/G4, SL390s G7 and WS460c G6.
Does this part include the drive carrier?
Yes. The hot-swap tray is included and attached to the drive, which is consistent with it being an assembly part number rather than a bare drive reference. Because the drive is a hot-plug device with the carrier fitted, it is intended to slot directly into a supported 2.5-inch SFF bay without transferring hardware from another drive.
HPE PARTSURFER INFO FOR 518194-004 (507127-B21)
| Spare PN | Description | |
|---|---|---|
 | 507284-001 | 300GB SAS hard disk drive - 6Gb/sec transfer rate, 10,000 RPM, 2.5-inch small form factor (SFF), hot plug (HP), dual-port (DP) - For use with Gen7 or earlier models |
Last Updated: 2026-07-22
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This product is warrantied against hardware failure for a period of 3 Years from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
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