518194-002 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 from a drive label or from a PartSurfer result, it identifies the built drive assembly: the 2.5-inch low profile SAS hard drive together with its attached hot-plug tray. The drive spins at 10,000 rpm and uses a dual port SAS interface with a 6 Gb/s external transfer rate. Physical dimensions are 0.591 inches high and 2.75 inches wide, matching the standard SFF hot-plug carrier used across supported ProLiant and BladeSystem servers.
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 518194-002:
- 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 518194-002
What is the difference between 518194-002, 507127-B21 and 507284-001?
All three refer to the same physical drive. This page, 518194-002, is an assembly part number, meaning it identifies the drive and its attached hot-plug tray as HPE built and labeled them. 507127-B21 is the option number, the form the drive is ordered in as a factory or field option kit. 507284-001 is the spare number used for service replacement. The label on a given unit may show any of these depending on how it shipped.
The number on my drive label is not 518194-002. Is it still the same part?
Very likely. Beyond this page's number, the same physical product carries ten other assembly revisions, 16 OEM drive model numbers, two generic part numbers and one alternate part number. An assembly part number identifies the drive plus its attached carrier as HPE assembled it. An OEM model number is the drive manufacturer's own designation printed on the label. All of these are listed in the cross-reference block on this page.
What are the exact specifications of 518194-002?
Capacity is 300GB. The interface is SAS (Serial Attached SCSI), dual port, with a 6 Gb/s external data transfer rate. Rotational speed is 10,000 rpm. The form factor is 2.5-inch low profile SFF, measuring 0.591 inches high by 2.75 inches wide. It is a hot-plug hard drive for server and storage use, and the hot-swap tray is included and already attached to the drive.
Which servers accept this drive?
Supported systems include BladeSystem models such as 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 and BL870c; DL series including DL120 G7, DL160 G6, DL180 G6, DL360 G4p through G7, DL380 G4 through G7, DL385, DL580, DL585, DL785 and DL980 G7; plus ML350 G5/G6, ML370 G4/G5/G6, ML570 G3/G4, SL390s G7 and WS460c G6.
Does 518194-002 include the drive tray?
Yes. The hot-swap tray is included and attached to the drive. That is what the assembly part number denotes: the bare drive combined with its SFF hot-plug carrier, ready to insert into a supported server or storage bay without transferring hardware from another drive. The carrier dimensions of 0.591 inches high by 2.75 inches wide correspond to the standard 2.5-inch low profile SFF bay.
HPE PARTSURFER INFO FOR 518194-002 (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
To initiate a return or warranty claim, please complete and submit the RMA Request Form.
