WisdPi PROM21 All in Expansion Card
The PROM21 All in is a flagship PCIe x4 expansion card powered directly by the AMD B650 (Promontory 21) desktop chipset. It delivers desktop-grade I/O bandwidth, massive storage capacity, and next-gen connectivity to any workstation or high-performance PC.
Standard usage
Features
Desktop Chipset Power: Built around the AMD B650 chipset for rock-solid stability and massive data throughput over a single PCIe x4 slot.
Switchable Oculink Port: Features a versatile Oculink interface that multiplexes PCIe and SATA signals. Easily switch between configurations via the onboard DIP switch (SW1) to support external GPUs or enterprise storage arrays.
Quad M.2 Storage Matrix: Equipped with 4x M.2 slots (2 on the front, 2 on the rear). Maximize your storage capacity with support for high-speed NVMe and SATA SSDs using the chipset's dedicated downstream lanes.
High-Speed USB Hub: Rear I/O includes a blisteringly fast 20Gbps USB-C port alongside four 10Gbps USB-A ports for zero-bottleneck peripheral connections.
Robust Power & Cooling: Features a dedicated external power connector (EXT_PWR) to ensure stable voltage under heavy loads, paired with a custom aluminum heatsink and a dedicated cooling fan header.
Spec
Feature
Specification
Controller
AMD Promontory 21 (B650 Chipset)
Host Interface
PCIe 4.0 x4
Storage Expansion
4x M.2 Slots
Next-Gen I/O
1x Oculink Port (Multiplexed PCIe/SATA)
External USB
1x USB 3.2 Gen 2x2 Type-C (20Gbps)
4x USB 3.2 Gen 2 Type-A (10Gbps)
Internal USB
6x USB 2.0 front panel header
Power Delivery
PCIe Slot Power + ext power connector
Cooling
Aluminum Heatsink with onboard Fan Header
Compatibility
x86(AMD/Intel) / ARM(Mac Silicon Series/Raspberry Pi 5) standard PCIe
Size
175x70mm
I/O Functions
1
EXT_PWR for USB
12V PCIe 6-Pin Power Connector. To use the USB port, this power supply must be connected.
2
20G USBC1
USB 3.2 Gen2 x2 20Gbps port x1
3
10G USBA1~4
USB 3.2 Gen2 10Gbps port x4
4
HS USBA5~10
Front Panel USB 2.0 Header 480Mbps port x6
5
PCIe/SATA Oculink
Oculink (SFF-8611) port config by SW1
6
M.2_3
M.2 M-Key 2280/22110 PCIe 4.0 x4*
7
M.2_1
M.2 M-Key 2280/22110 PCIe 4.0 x4*
8
FAN
12V FAN power connector
9
SATA LED1~4
Data status of SATA 1~4 port
10
M.2 LED1~4
Data status of M.2 1~4 port
11
SW1
Oculink port configuration switch
12
M.2_4
M.2 M-Key PCIe 4.0 x2
13
M.2_2
M.2 M-Key PCIe 4.0 x2
*Note: If M.2_2 and/or M.2_4 are in use, M.2_1 and M.2_3 will automatically drop to x2 lanes mode.
Oculink (SFF-8611) port configuration (SW1)
M.2 slot lane distribution
M.2_1 & M.2_3: Support PCIe x4 lanes (standalone mode).
M.2_2 & M.2_4: Support PCIe x2 lanes.
Note: If M.2_2 and/or M.2_4 are in use, M.2_1 and M.2_3 will automatically drop to x2 lanes mode.
4.0 x4
/
4.0 x4
/
4.0 x2
4.0 x2
4.0 x2
4.0 x2
Last updated