TYAN TN70A-B8026 Transport SX 2U Barebone NVMe/SATA 1P AMD Epyc Server

TYAN Transport SX TN70A-B8026, B8026B8026T70AV16E8HR, Barebone Hybrid Storage Server, 1x SP3, 8x NVMe/16x SATA 2.5" Bays

Scan code: LN84186 Manufacturer code: B8026T70AV16E8HR Request call
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Product Overview TYAN TN70A-B8026 Hybrid Storage Server B8026T70AV16E8HR
Traditional server architectures have tied high amounts of PCIe connectivity and memory capacity to dual socket designs. The AMD EPYC platform frees server designers from this limitation, allowing us to design single-socket servers with features only seen before in dual socket platforms. The Tyan Transport SP (TN70A-B8026) allows datacenter architects to select the right sized CPU without sacrificing memory capacity, memory performance, or PCIe connectivity.

Tyan's TN70A-B8026 offers outstanding computational power for a single-socket server, with support for 8, 16, 24, or 32-Core processors with up to 64 threads. The memory capacity of the server is also incredibly high for a single socket server, able to support up to 2TB of RAM with every processor in the AMD EPYC SKU stack.

The platform is a 2U server barebones based on the outstanding Tomcat SP (s8026) single-socket AMD EPYC motherboard. The B8026T70AV16E8HR model is a hybrid storage server with support for (8) 2.5" NVMe and (16) 2.5" SATA drive bays. The server supports up to 6 PCIe slots in the back, with a pair of x24 riser cards that can both support either x16/x0/x8 or x8/x8/x8 configurations. An OCP v2.0 LAN Mezzanine provides high speed network capability, with support for either x8 or x16 network cards and speeds up to 100Gigabit Ethernet. A x16 LAN Mezzanine borrows 8 PCIe lanes from a riser slot through a MUX.

The TN70A-B8026 is a versatile design and has an alternative all-NVMe model named the B8026T70AE24HR with support for 24 NVMe Hot-Swap 2.5" bays.

The AMD EPYC processor offers the highest possible performance from a single CPU socket, including:

• 8, 16, 24, or 32 core processors with 16, 32, 48, or 64 threads.
• Support for up to 2TB total RAM per socket on all CPU models.
• Support for memory speeds up to DDR4-2667.
• 128 PCIe lanes.

Dual Socket Feature Set
Traditionally, the only way to deploy a large number of PCIe devices or deploy large quantities of memory has been to select a dual-socket motherboard. This has resulted in datacenters full of underutilized and expensive dual-socket servers which had been purchased for memory footprint and I/O capabilities that had not previously been available in single-socket servers. Tyan has targeted these applications with the AMD EPYC platform by supporting up to 124 PCIe lanes and 8 memory channels in a single-socket platform. Significant savings can be had both in CPU cost and power consumption by migrating workloads to a single socket AMD EPYC platform and increasing resource utilization.

8 Hot-Swap 2.5" NVMe Drive Bays
NVMe technology offers breakthrough performance for SSDs by attaching storage devices directly to the PCIe bus, freeing them from the SATA protocol that was originally designed for slower rotational media. This technology significantly reduces storage latency and increases transfer speeds.

To put things into perspective, during the summer of 2017 the fastest SATA SSDs on the market were already saturating the SATA 6G bus with peak sequential transfer rates of 550MB/s read and 520 MB/s write. The bigger pipe and lower latency of the NVMe PCIe x4 link allows the fastest NVMe SSDs to reach sequential read rates of 3,500MB/s and read rates around 2,100MB/s. Non-sequential performance heavily favours NVMe devices as well, with typical SATA SSDs achieving 4K random read/write performance around the 100K IOPS range. In comparison, high performance NVMe devices routinely offer 4K random R/W numbers in the neighbourhood of 350-450K+ IOPS.

Previous motherboard designs were not well suited to NVMe deployment due to a lack of PCIe lanes. Each NVMe device requires a PCIe x4 link. Large numbers of these devices could not previously be deployed without expensive and bottleneck inducing switch chips or without quickly running out of I/O resources for other devices in the server. The AMD EPYC CPU is ideal for this storage technology, featuring support for 128 PCIe lanes from a single CPU socket.

Tyan's TN70A-B8026 is designed to offer the most robust support for direct attached NVMe storage of any single-socket storage server ever made. The B8026T70AV16E8HR model supports 8 NVMe drive bays while still leaving 56 PCIe lanes available across the LAN Mezzanine and PCIe slots in the rear of the chassis.

16 Hot-Swap 2.5" SATA Drive Bays
Not all applications require 24 NVMe SSDs, and the B8026T70AV16E8HR is designed with this in mind. The hybrid SATA/NVMe model deploys less PCIe Oculink cables than the all-NVMe version and uses simplified HDD backplanes. This results in a lower cost option with the side effect of freeing up PCIe connectivity for more expansion devices.

180W CPU Support
AMD’s top bin EPYC CPU supports up to 32 CPU cores and draws upwards of 180W. The TN70A-B8026 has enough thermal and power headroom to support the full AMD EPYC CPU lineup, allowing systems engineers to select the right processor for the job.

IPMI 2.0 with Redfish Support
Featuring AMI MegaRAC firmware, the TN70A-B8026 offers support for IPMI 2.0 with iKVM and the DMTF Redfish management protocol.

Aimed at:
• Software Defined Storage.
• High Performance Flash.
• Video Streaming.
• E-Commerce.
• Big Data Applications.
• In-Memory Databases.
• Content Distribution.
• Real-Time Analytics.
• Enterprise Workloads.
• General Purpose Applications. Features • Single-Socket AMD hybrid storage server with 8 NVMe and 16 SATA drive bays. Ideal for software defined storage, content distribution, enterprise workloads, and general purpose server applications.
• AMD EPYC SoC Processor w/ TDP up to 180W.
• Memory:
- (16) DDR4 DIMM slots (8 memory channels).
- Supporting up to 2TB RDIMM/LRDIMM DDR4-2667:
+ Maximum memory speed subject to AMD memory controller limitations, DDR4-2667 not available in all configurations or capacities.
+ 2TB total capacity not yet validated.
• PCI Expansion Slots:
- 56 PCIe lanes available over a number of flexible slot configurations:
+ Up to (2) x16 slots + (1) 16 LAN mezzanine + (1) x8 slot or;
+ (6) PCIe x8 slots + x8 LAN mezzanine.
• Network:
- (1) PCIe G3 x16 OCP 2.0 Slot for LAN Mezzanine Card up to 100Gb/s.
- (2) 1000Base-T ports (Broadcom BCM5720).
- (1) 1000BASE-T Dedicated IPMI port (Realtek RTL8211E-VB-CG).
• Storage:
- (24) front hot-swap 2.5” NVMe bays.
- (2) 2242/2260/2280/22110 SATA/NVMe PCIe x2 M.2.
• AST2500 BMC with iKVM, IPMI, and Redfish support.
• (1+1) 770W hot-swap RPSU, 80+ Platinum.
• Optional TPM 1.2 & 2.0 modules.
• Dimensions: H87.6mm x W440mm x D700mm (27.5”).
Edition Tyan Transport SX TN70AB8026
Form Factor 2U Rackmount
CPU Included No
CPU Model  
Manufacturing Process  
Unlocked CPU No
No. of Threads N/A
Clock Speed N/A
Burst Frequency N/A
CPU Cache  
CPU Cooler Not Included, Sold Separately
Max. TDP  
CPU Socket SP3
Chipset System-on-Chip
Motherboard Form Factor Bespoke/Custom
Motherboard Model  
Memory Type DDR4
Memory Included No
Memory Capacity Included N/A
Memory Channels Octa (8)
Memory Type (ECC) ECC
Memory Speed (Mhz) DDR4 - 2666
Max. Memory Capacity 1024GB (16x64GB)
On-board/Integrated Graphics No
Processor/Motherboard Graphics Chip Aspeed AST2500 Integrated
Discrete GPU No
Discrete GPU Chipset  
GPU Cores/Streams/Execution Units  
GPU Tensor Cores N/A
Base GPU Speed N/A
Max. GPU Speed N/A
GPU Memory Size  
GPU Memory Type  
GPU Memory Clock  
GPU Memory Bus  
Discrete GPU Cooler  
SLI Multi-GPU Configuration No
Max. GPU Resolution 1920x1080 (Full HD)
Graphics Interface On-board
Expansion Slots
  • 2 x M.2, 2242/2260/2280/22110, PCIe
  • 2 x PCIe 3.0 x16 (w/o using OCP 2.0 Mezz card)
  • 1 x PCIe 3.0 x16 OCP 2.0 slot (con.A+con.B)
  • 1 x PCIe 3.0 x8 (w/o using OCP 2.0 Mezz card)
  • 2 x PCIe x8 SFF-8611 OCuLink Connector
Storage Drive Included No
Storage Drive Type  
Storage Drive Capacity N/A
Optical Drive N/A
Drive Bays
  • 8 x 2.5" External SATA3 Hot-Swap
  • 16 x 2.5" External U.2 NVMe Hot-Swap
Backplane I/O  
RAID Support N/A
Internal I/O 1 x Serial (COM) Header
Network Interface Type
  • Dual Wired Gigabit LAN (10/100/1000)
  • PHY
Network Chip/Modules
  • 1 x Broadcom BCM5720 (Gigabit LAN)
  • 1 x Realtek RTL8211E (PHY)
Front Panel
  • 1 x ID Button
  • 1 x ID LED
  • 1 x IPMI/Warning LED
  • 1 x Power Button with LED
  • 1 x Reset Button
  • 2 x USB 2.0
Back Panel
  • 2 x 10/100/1000 (LAN)
  • 1 x D-Sub (VGA) Out
  • 1 x PHY Dedicated IPMI RJ45
  • 1 x Serial (COM)
  • 2 x USB 3.0
Cooling Fans 4 x 60mm
Keyboard / Mouse Included No
Remote Control Included No
VESA Mountable N/A
PSU Wattage 770 W
PSU Efficiency Rating 80 PLUS Platinum
PSU Redundancy 1+1
Operating System Included No
Operating System N/A
Colour Black
Dimensions 450 x 87 x 700 (mm WxHxD)

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For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
28 days
RTB Period:
12 months
Manufacturer Contact Details
0871 472 4747
Questions & Answers
TYAN TN70A-B8026 Transport SX 2U Barebone NVMe/SATA 1P AMD Epyc Server
TYAN TN70A-B8026 Transport SX 2U Barebone NVMe/SATA 1P AMD Epyc Server