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Home / HP / Solid State Drives / HP 691857-B21

HP 691857-B21 400GB SATA 6Gb/s 2.5" SFF SC MLC SSD

Part Number: 691857-B21     Brand: HP
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Condition

HP 691857-B21 Product Specs

▲
Brand
HP
Capacity
400GB
Carrier Type
Smart Carrier (SC)
Interface Type
SATA
Data Transfer Rate
6Gb/s
NAND Flash Memory Type
Multi-Level Cell (MLC)
Form Factor
3.5" LFF

HP 691857-B21 Description

▼

Introducing the HP 691857-B21 400GB SATA 6Gb/s 2.5" SFF SC MLC SSD, a high-performance solid-state drive designed to enhance the speed and reliability of your server storage. Ideal for use in a variety of HP ProLiant server models including ProLiant DX, DL, ML, SL, BL, XL, and CL series, this SSD is perfect for data-intensive applications, virtualization, and enterprise workloads that demand fast access and robust data integrity.

This SSD features a Smart Carrier (SC) design for easy installation and maintenance, making it a seamless upgrade or replacement option for compatible servers. With a 400GB capacity, it provides ample space for critical data storage while delivering impressive performance through its SATA interface with a 6Gb/s data transfer rate. The Multi-Level Cell (MLC) NAND flash memory ensures a balance of speed, endurance, and cost-efficiency, making it suitable for both read-intensive and mixed workload environments.

Key specifications of the HP 691857-B21 SSD include:

  • Brand: HP
  • Capacity: 400GB
  • Carrier Type: Smart Carrier (SC)
  • Interface Type: SATA
  • Data Transfer Rate: 6Gb/s
  • NAND Flash Memory Type: Multi-Level Cell (MLC)
  • Form Factor: 3.5" Large Form Factor (LFF)
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Everett M.
ⓘ We found 7 subs for the HP 691857-B21
98% Match
HP 862882-S21 400GB SATA 6Gb/s 3.5" LFF Write Intensive MLC SSD
✓ Capacity: 400GB
✓ Interface: SATA
✓ Form Factor: 3.5" LFF
✓ Brand: HP
+ Workload: Write Intensive (WI)
✓ NAND Flash Memory Type: Multi-Level Cell (MLC)
✓ Data Transfer Rate: 6Gb/s
96% Match
HP 692162-001 400GB SATA 6Gb/s 3.5" LFF SC MLC SSD
✓ Capacity: 400GB
✓ Interface: SATA
✓ Form Factor: 3.5" LFF
✓ Brand: HP
+ Workload: MidLine (MDL)
✓ NAND Flash Memory Type: Multi-Level Cell (MLC)
+ Hot-Swappable: Yes
✓ Data Transfer Rate: 6Gb/s
96% Match
HP 804668-B21 400GB SATA 6Gb/s 3.5" LFF Write Intensive SC MLC SSD
✓ Capacity: 400GB
✓ Interface: SATA
✓ Form Factor: 3.5" LFF
✓ Brand: HP
+ Workload: Write Intensive (WI)
✓ NAND Flash Memory Type: Multi-Level Cell (MLC)
+ Hot-Swappable: Yes
✓ Data Transfer Rate: 6Gb/s
96% Match
HP 864132-001 400GB SATA 6Gb/s 3.5" LFF Write Intensive SC SSD
✓ Capacity: 400GB
✓ Interface: SATA
✓ Form Factor: 3.5" LFF
✓ Brand: HP
+ Workload: Write Intensive (WI)
✓ NAND Flash Memory Type: Multi-Level Cell (MLC)
+ Hot-Swappable: Yes
✓ Data Transfer Rate: 6Gb/s
96% Match
HP 691856-B21 400GB SATA 6Gb/s 3.5" LFF SC MLC SSD
✓ Capacity: 400GB
✓ Interface: SATA
✓ Form Factor: 3.5" LFF
✓ Brand: HP
+ Workload: Write Intensive (WI)
✓ NAND Flash Memory Type: Multi-Level Cell (MLC)
+ Hot-Swappable: Yes
✓ Data Transfer Rate: 6Gb/s
96% Match
HP 804668-S21 400GB SATA 6Gb/s 3.5" LFF Write Intensive SC MLC SSD
✓ Capacity: 400GB
✓ Interface: SATA
✓ Form Factor: 3.5" LFF
✓ Brand: HP
+ Workload: Write Intensive (WI)
✓ NAND Flash Memory Type: Multi-Level Cell (MLC)
+ Hot-Swappable: Yes
✓ Data Transfer Rate: 6Gb/s
94% Match
HP 805388-001 400GB SATA 6Gb/s 3.5" LFF Write Intensive SC SSD
✓ Capacity: 400GB
✓ Interface: SATA
✓ Form Factor: 3.5" LFF
✓ Brand: HP
+ Workload: Write Intensive (WI)
✓ NAND Flash Memory Type: Multi-Level Cell (MLC)
+ Hot-Swappable: Yes
✓ Data Transfer Rate: 6Gb/s
+ Encryption: Digitally Signed (DS)

Customer Reviews

4.8
★★★★★
289 reviews
94% recommend
5
(253)
4
(21)
3
(9)
2
(2)
1
(4)
G
Gary B.
2025-06-12
✓ Verified Buyer
★★★★★
The sales guy at Boost Hardware was super knowledgeable. He helped me find the right part for my older Proliant server.
E
Even P.
2025-04-09
✓ Verified Buyer
★★★★★
We purchased the wrong part by mistake. Boost hardware made it easy to return and quickly issued me a refund.
M
Matthew S.
2025-04-08
✓ Verified Buyer
★★★★★
Good purchasing experience.
A
Aaron P.
2025-04-04
✓ Verified Buyer
★★★★★
The refurbished drives we ordered were in perfect condition.
M
Mitch F.
2025-04-04
✓ Verified Buyer
★★★★★
BoostHardware always has what I need at reasonable prices.
D
David P.
2025-03-28
✓ Verified Buyer
★★★★★
Delivered on time.
L
Louis J.
2025-03-26
✓ Verified Buyer
★★★★★
Found the hard drives I needed. The ordering process was smooth and fast. Got the drives next day.
D
Darryl P.
2025-03-25
✓ Verified Buyer
★★★★★
Excellent personal service, thanks Scott!
L
Lindsay M.
2025-03-21
✓ Verified Buyer
★★★★★
Good price on the drives we needed.

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