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HighPoint RocketRAID 4520 8-Channel SAS/SATA 6Gb/s PCI-E 2.0 x8, DDR3 512MB Onboard Memory, RAID-on-Chip Controller Card

  • RAID 0/1/5/6/10/50 JBOD
  • 2 x SFF-8087 mini-SAS Internal Connectors
  • Up to 6Gb/s
  • Dual-Storage Modes: LTO Tape and RAID Arrays
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Dual-Storage Modes: LTO Tape and RAID Arrays

RocketRAID 4500 series HBA’s are fully compliant with the Serial Attached SCSI Specification, which allows them to support LTO tape drives and SAS/SATA Hard Disk Drives, simultaneously, for Legacy Mac Pro workstations and Thunderbolt™ capable PCIe platforms Mac OS X 10.9.2/10.8/10.6.8 and later.

  • newegg Next Generation SAS 6Gb/s RAID-on-Chip Processor The dedicated RAID-on-Chip processor and 512MB of onboard DDR 3 cache memory offloads RAID processing from the host system, ensuring stable and high-performance data transfer. RocketRAID 4500 series HBA's are ideal 6Gb/s upgrades for current generation 3Gb/s RocketRAID 4300 Series Hardware RAID Controllers. Migrating existing 3Gb/s RAID storage to high-performance 6Gb/s SAS has never been easier.
  • newegg Superior Reliability HighPoint's comprehensive suite of data security, RAID recovery and storage maintenance features provide an unprecedented level of reliability.
  • newegg Seamless Upgrade Paths RocketRAID 4500 series HBA's are capable of supporting RAID arrays configured with any member of HighPoint's extensive RocketRAID HBA product lines. Advanced storage management features such as Online RAID Level Migration (ORLM) and Online Capacity Expansion (OCE) allow clients to dynamically expand, upgrade and convert storage configurations to keep pace with changing application workloads, without compromising critical data investments.
  • newegg Delivers True Host-to-Target SAS 6Gb/s Connectivity True end-to-end 6Gb/s SAS Expansion enables each RocketRAID 4500 series HBA support up to 128 SAS/SATA devices in cascade configurations when used in conjunction with SAS Expander devices.

Learn more about the HighPoint Technologies, Inc. RocketRAID 4520


RocketRAID 4520
Form Factor
Low Profile


Internal Connectors
2 x SFF-8087 mini-SAS
Transfer Rate
Up to 6Gb/s
Cache Memory
512MB DDR 3 Cache memory with ECC protection
RAID 0/1/5/6/10/50 JBOD
Operating Systems Supported
Windows Server 2003, 2007, 2008
Window Vista and 7
Major Linux Distributions
Mac OS X 10.5 and above
6.575"(L) x 2.667"(H)


HighPoint's Next-Generation SAS/SATA 6Gb/s RAID-on-Chip HBA's

Support 8 internal SAS/SATA Hard Drives and SSD's

Marvell 88RC9580 RAID-on-Chip CPU

Dual internal Mini-SAS connectors (SFF-8087)

Up to 128 SATA / SAS devices via SAS Expander or SATA Port Multiplier

Advanced RAID:
RAID 0, 1, 5, 6, 10, 50, JBOD with RAID Configuration protection
Enhanced data protection with Write Journaling feature
OCE (Online Capacity Expansion) &ORLM(Online RAID Level Migration)
Supports SGPIO, SES2, I2C
Supports UEFI BIOS boot
Staggered Drive Spin Up
Spin Down Idle Disk
S.M.A.R.T Support
Native Command Queuing (NCQ)
Support 64bit LBA for over 2TB Device
LUN Device support

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the HighPoint Technologies, Inc. RocketRAID 4520

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  • Pei K.
  • 2/22/2015 7:49:00 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsRight Timing To Buy SAS 6Gb/s Hardware RAID Controller

Pros: 12G Hardware RAID controllers are finally becoming more common. I figured this was a good time to start looking for a bargained priced 6G model. This is why I ended up settling on the RocketRAID 4520. In fact, it looks to be the cheapest hardware RAID controller on the market right now.
It helped that this card has been available for several years now, so I didn't expect anything to go awry.
The initial testing was done with Windows 2012R2 and 8 Seagate enterprise drives setup for RAID 5. It had no trouble recognizing the hard drives, and was easy to install my workstation. The card has browser software for creating arrays, which is also easy to setup and use.
I expected performance in the 1000MB/s range, but was surprised and disappointed to only get around 800 sustained. The drives are capable of more than this, and a hardware RAID controller should have no trouble pushing hard disks to their limits speed wise.

Cons: Too early to say – see my Other Thoughts

Other Thoughts: After hitting the 800MB/s ceiling, I was starting to worry that the lower cost was not related to 12G, and maybe related to the hardware’s limitations?
Hopefully, I am just doing something wrong and this card can actually perform like a hardware RAID controller should. I sent a request to their support department (online only), which says it will respond in 24 hours. I tend to dislike online-only support service, to put it mildly, but I guess I will take a wait and see approach. If they come through (or not) I'll update this review

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  • cynthia r.
  • 12/9/2014 10:00:16 AM
  • Tech Level: High
  • Ownership: less than 1 day

3 out of 5 eggsssd?

Pros: fast fast. it is not made for ssd's if you had 5 WD 10,000 rpm hd's they would be almost as fast a a single ssd. you have to look at pcie type ssds for more speed.

Cons: shame on you guys.

Other Thoughts: raid 0 = latency for 2 hd's to transfer form spinning platters , it's simple, no platters, no latency. raid 1 is an idea. for a server, I would give each person and ssd , sd3, sd4 sd5, ect and probley backup on raid5 using WD's

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  • Anonymous
  • 11/5/2013 1:12:19 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat SAS Raid Cards

Pros: Just started using this SAS cards, been using RR cards for years and then have been great, no complaints here

Cons: none

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  • Adrien B.
  • 4/3/2013 4:47:26 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsNot do buy this product

Pros: None

Cons: it took 72 hrs to complete the configuration of a 3 (2tb each) disk RAID 5 array. Drvrs wouldnt load during install of Win srvr 2008 R2. I had to attach a HDD to the system board controller to load windows. Once Windows has loaded I loaded the drivers for the Rocket RAID card and tried to format the 4tb logical disk. After 72hrs the drive still wasn't formatted. I loaded the management utility hoping a firmware update would help. The management utility did not work. And, the server blue screend until the management util was uninstalled. Tech support was no help at all. Tech support is email only with overnight response. Each tech that works the case starts from the beginning as if there are no case notes. It's been over a month and the issue hasn't been resolved. I had to buy an Adaptec controller. The disk initialized, and created the array in less than 30 seconds

Other Thoughts: Do not wast your money on anything by Highpoint, there is no tech support. I wish I could have given it zero stars.

1 out of 2 people found this review helpful. Did you? Yes No

  • Paul W.
  • 2/19/2013 5:18:54 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month

2 out of 5 eggsVery Slow IOPs @ 4K with SSD

Pros: Install was easy. Bios Setup was intuitive, and easy to follow. Low Cost when compared to other 512MB cache cards. Stays relatively cool. Was able to hit 3 GB/s reads ( bytes, not bits ) with a 6 x SSD raid 0 array but only when stripe size set to 512 KB.

Cons: SSD performance for transfers under 64KB are terrible. There was absolutely no increase in speed when adding additional Drives to the array. I was only hitting 20K IOPs reads with 6 drives in raid 0.

Other Thoughts: I bought this card for a multipurpose ( IIS, MySQL, Email, Stats ) rack server I am building. The server is running dual xeon x5570, and has 48 GB of ram.

I setup a regular sata drive for the primary, then tried various RAID 0 configurations using 6 x 250GB Samsung 840 SSDs. I tried a single SSD, 2 SSDs in RAID 0, 4 SSDs in RAID 0, and 6 SSD in RAID 0. At the same time I tried adjusting the stripe size to see if the helped performance. The card's default is a 64KB stripe. I tried 16KB at the low end and 512KB at the highend. At 16KB I had better speed for smaller transfers, at 512KB I had better speed for larger transfers.

With the stripe size set at 512KB I was able to break 3GB/sec on the 6 x SSD raid 0 array. But when set to a 64KB stripe it would barely hit 1.8 GB /sec.

But since this is for a web server top end is not my concern. What I need is fast IOPs especially at 4KB. The Samsung 840 250GB SSDs are rated for 96,000 IOPs at 4KB for reads.

With a 64KB stripe size I was only able to get 5000 IOPS on a 6 x SSD RAID 0 array. Even when adjusting the stripe size to 16KB I was still only hitting 20K IOPS. Granted I don't expect to break 500K IOPS for 6 SSD, but I was hoping for something over 250K.

What also didn't make sense was these figures were the same no matter how many SSDs were in the Array. 1 SSD had almost the same performance as 6 SSD for transfers under 64KB. After 64KB things start to get better.

Just to make sure it wasn't the SSD drives I installed a single one in my workstation on a Intel ICH10R SATA II port. I was doing close to 50000 IOPS at 4KB.

I have already opened a ticket with HighPoint. At first they were communicating great, but then they were supposed to contact me monday, and here I am the end of tuesday and I haven't heard anything from them.

Hopefully they can release a firmware update to fix the terrible IOPs performance.

3 out of 4 people found this review helpful. Did you? Yes No

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