IP Library Granted Patent US 12681545
Granted Patent B2
US 12681545 · App. 18/446,007 · Granted Jul 14, 2026

Front input/output (I/O) expansion module for a computing device

Inventors: Michael Dudley French, Jr. (Morrisville, NC); Bradley Paul Antczak (Morrisville, NC); Nathan Okenna Onyejiaka (Morrisville, NC); Paul Spence Sawyer (Morrisville, NC)
Assignee: LENOVO ENTERPRISE SOLUTIONS (SINGAPORE) PTE. LTD.
G06F1/183G06F1/20H05K7/1461H05K7/20136
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Quick Facts
Patent No.
US 12681545
App. No.
18/446,007
Granted
Jul 14, 2026
Kind
B2
Abstract

An input/output (I/O) expansion module includes a first substrate, and an expansion slot disposed on the first substrate. The expansion slot is configured to be communicatively coupled to a backplane slot disposed on a backplane of a computing device. The computing device is external to the I/O expansion module.

Claims (29)

1 . An input/output (I/O) expansion enclosure, comprising:

a rackmountable chassis;

a riser card mounted within the chassis, the riser card comprising one or more I/O expansion card slots each configured to receive a corresponding I/O card; and

a cable configured to communicatively couple the one or more I/O expansion card slots of the riser card to a conversion module installed in a Non-Volatile Memory Express (NVME) drive slot on a NVME backplane of a rackmountable computing device external to the rackmountable chassis of the I/O expansion enclosure.

2 . The I/O expansion enclosure of claim 1 , wherein the one or more I/O expansion card slots comprise at least one Peripheral Component Interconnect Express (PCIe) slot.

3 . The I/O expansion enclosure of claim 1 , further comprising:

a power supply configured to provide power to the one or more I/O expansion card slots.

4 . The I/O expansion enclosure of claim 1 , wherein the NVME drive slot is a first NVME drive slot, and wherein the conversion module is configured to couple with a plurality of NVME drive slots of the rackmountable computing device, the plurality of NVME drive slots including the first NVME drive slot.

5 . The I/O expansion enclosure of claim 4 , wherein the cable is coupled to the first NVME drive slot and a second NVME drive slot of the plurality of NVME drive slots.

6 . The I/O expansion enclosure of claim 1 , wherein a first I/O expansion card slot of the one or more I/O expansion card slots is configured to receive a peripheral component.

7 . The I/O expansion enclosure of claim 6 , wherein the peripheral component comprises a storage device.

8 . The I/O expansion enclosure of claim 6 , wherein the peripheral component comprises a graphics processing unit (GPU).

9 . The I/O expansion enclosure of claim 6 , further comprising a cooling device configured to cool the peripheral component.

10 . The I/O expansion enclosure of claim 6 , wherein the peripheral component comprises a networking device.

11 . The I/O expansion enclosure of claim 1 , wherein the riser card comprises a plurality of I/O expansion card slots.

12 . The I/O expansion enclosure of claim 1 , wherein the cable is configured to carry both data signals and power.

13 . The I/O expansion enclosure of claim 1 , wherein the riser card mounted in the chassis is a first riser card of a plurality of riser cards mounted in the chassis.

14 . The I/O expansion enclosure of claim 1 , wherein the rackmountable computing device comprises a server.

15 . A system comprising:

a rack unit comprising one or more rack spaces;

a computing device installed in a first rack space of the rack unit, the computing device comprising a peripheral component bay accessible from a first side of the computing device, wherein the peripheral component bay comprises a Non-Volatile Memory Express (NVME) storage device backplane having NVME storage device slots each configured to receive a corresponding NVME storage device;

a conversion module installed in the peripheral component bay of the computing device and coupled to at least one of the storage device slots present on the storage device backplane; and

an input/output (I/O) expansion module external to the computing device and installed in a second rack space, the I/O expansion module comprising:

a chassis; and

a riser card mounted within the chassis, the riser card comprising one or more I/O expansion card slots each configured to receive a respective I/O expansion card; and

a cable connecting the I/O expansion module to the computing device and configured to communicatively couple wherein the one or more I/O expansion card slots of the riser card to the NVME storage device backplane of the computing device.

16 . The system of claim 15 , wherein the I/O expansion module further comprises a power supply configured to provide a first supply power to the one or more I/O expansion card slots.

17 . The system of claim 15 , wherein the cable is configured to carry operating power from the computing device to the I/O expansion module.

18 . The system of claim 17 , wherein the cable is coupled to both first and second NVME storage device slots of the NVME storage device backplane.