GIVEAWAY: TEAMGROUP T-Force VULCAN Z SATA III SLC 2TB SSD, two up for grabs!

Promise Pegasus32 R4 TB3-USB-C DAS Review

Is the Promise Pegasus32 R4 the ultimate USB-C DAS for SOHO users? Read on as we investigate.

Published Oct 8, 2019 10:55 AM CDT   |   Updated Tue, Nov 3 2020 6:57 PM CST
Manufacturer: Promise
3 minutes & 17 seconds read time
TweakTown's Rating: 90%
TweakTown award

The Bottom Line

If performance is what you are after, the Pegasus32 R4 offers all of that and multi-platform flexibility of USB-C and Thunderbolt 3.
Promise Pegasus32 R4 TB3-USB-C DAS Review 99

With the fast rise in popularity of USB 3.2 and the USB-C connection, vendors are quickly revamping product lines to take advantage of the increased performance and flexibility offered. Promise isn't one to fall behind so today we look at their first, USB-C enabled platform; Pegasus32.

Pegasus32 carries over much of what Promise offered in the Pegasus3 lineup. To that point the naming scheme has stayed the same with R4, R6 and R8 units available along with a solid RAID platform that supports everything from high performance RAID0 to RAID5 and 6 for redundancy and RAID10 for a mix of performance and redundancy. Capacities offered depend on platform, for the model in house you are looking at 12TB and 16TB models while the R8 is capable of 112TB of raw capacity.

Connectivity is setup via two USB-C Ports that offer both Thunderbolt 3 at 40Gbps and USB 3.2 Gen2 at 10Gbps with charging capabilities at 85W. The DP 1.4 Port supports 8K monitors along with 4K60. OS compatibility includes both Windows 10 and macOS 10.14, Pricing for these units is currently unavailable but warranty is listed at three-years.

Promise Pegasus32 R4 TB3-USB-C DAS Review 02

Packaging for the 32 offers capacity along the bottom right next to connectivity and an image of the device.

Promise Pegasus32 R4 TB3-USB-C DAS Review 03

The box does offer a full specifications list along with box contents and diagram below.

Promise Pegasus32 R4 TB3-USB-C DAS Review 04

Included in the box; we have a Thunderbolt 3 cable, power cable and reading materials.

Promise Pegasus32 R4 TB3-USB-C DAS Review 05

Aesthetically, the Pegasus32 shares a near identical enclosure design to the Pegasus3. Along the left side we have the power button and activity LEDS. Each drive bay offers independent activity LEDS as well.

Promise Pegasus32 R4 TB3-USB-C DAS Review 06

On the back, we have a cooling fan centered with USB-C ports along the top and to the right the DP 1.4 port with full 8K monitor support.

Promise Pegasus32 R4 TB3-USB-C DAS Review 07

The Pegasus32 is a turn-key platform and is supplied with Toshiba HDDs.

Promise Pegasus32 R4 TB3-USB-C DAS Review 10

The Pegasus32 is configured and managed from the Promise Utility available on both Windows and macOS. From here we get an overview of the system to the left and event and storage overviews to the right.

Promise Pegasus32 R4 TB3-USB-C DAS Review 11

Moving over to the drives, we get an overview of their location in the enclosure along with the array they are part of.

Promise Pegasus32 R4 TB3-USB-C DAS Review 12

One more tab over and we can view RAID information including type, capacity and cache policy.

Promise Pegasus32 R4 TB3-USB-C DAS Review 14

With the Promise Utility you can schedule background activities including redundancy checks, rebuild and migration.

Promise Pegasus32 R4 TB3-USB-C DAS Review 20

For performance testing, I started with RAID 0 and CDM. Sequential performance reached 785 MB/s read and 864 MB/s write.

Promise Pegasus32 R4 TB3-USB-C DAS Review 21

Moving over to AJA, we see 345 FPS for write and 319 FPS for read operations at 1080p.

Promise Pegasus32 R4 TB3-USB-C DAS Review 22

Last, we look at Flash Bench which offers around 750 MB/s read and 875 MB/s write at its peak.

Promise Pegasus32 R4 TB3-USB-C DAS Review 23

Switching to RAID 5, read performance comes in at 567 MB/s with write at 643 MB/s.

Promise Pegasus32 R4 TB3-USB-C DAS Review 24

FPS for RAID5 come in at 192 FPS read and 252 FPS write.

Promise Pegasus32 R4 TB3-USB-C DAS Review 25

Flash Bench shows solid performance at 16M with write nearing 850 MB/s and read just shy of 720 MB/s.

Promise Pegasus32 R4 TB3-USB-C DAS Review 27

For maxed out performance, I removed the Toshiba HDDs and installed 3x SATA SSDs and re-ran testing in RAID 0. That said, we got only a minor performance bump in sequentials, likely held back by the USB-C interface but gained 4x in random workloads.

The Pegasus32 is the next evolution of desktop storage; combining both USB and Thunderbolt into a single interface offering the next level in platform flexibility. Build quality is still top notch including fit and finish all the way down to the drive bay mechanisms.

Performance of this unit was fantastic and while I did only test with 10Gbps USB-C, no performance was lost or gained wit this being a turn-key HDD based unit. In my testing RAID 0 was able to produce 780 MB/s read and 860 MB/s write and up to 340 FPS in AJA 1080p testing. For RAID 5, we found slightly lower numbers at 560 MB/s read and 640 MB/s write and a peak of 250 FPS in AJA.

Adding to the overall package was the Promise Utility software. This gave us a fantastic overview of the system and drives allowing easy management of the platform all the way down to redundancy and migration activities.

Pricing of the Pegasus32 is currently unknown but I do expect it to mirror the Pegasus3 lineup at $1499 for the 12TB R4 and $1799 for the 16TB model.

Tyler's Test System Specifications

Performance

95%

Quality

90%

Features

90%

Value

85%

Overall

90%

The Bottom Line

If performance is what you are after, the Pegasus32 R4 offers all of that and multi-platform flexibility of USB-C and Thunderbolt 3.

TweakTown award
90%

Promise Pegasus32 R4

TodayYesterday7 days ago30 days ago
-
---
* Prices last scanned on 12/3/2022 at 8:36 pm CST - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.

Tyler joined the TweakTown team in 2013 and has since reviewed 100s of new techy items. Growing up in a small farm town, tech wasn't around, unless it was in a tractor. At an early age, Tyler's parents brought home their first PC. Tyler was hooked and learned what it meant to format a HDD, spending many nights reinstalling Windows 95. Tyler's love and enthusiast nature always kept his PC nearby. Eager to get deeper into tech, he started reviewing.

Newsletter Subscription
We openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion. If any company representative wishes to respond, we will publish the response here. Please contact us if you wish to respond.
Newsletter Subscription
Latest News
View More News
Latest Reviews
View More Reviews
Latest Articles
View More Articles