System Expansion

System expansion components let creative teams scale storage, connectivity and processing power to handle growing workloads without full rebuilds. This category covers RAID chassis, Thunderbolt docks, GPU enclosures, high-density NVMe bays, SAS expanders and fibre-channel HBAs designed for video editing suites, colour bays and VFX render farms. It suits post-production houses, freelancers, and agencies managing 4K, 8K or multi-stream timelines where active projects outgrow base systems. Capacity, interface speed and redundancy drive most decisions. External RAID arrays add petabytes of fast scratch space for collaborative edits, while Thunderbolt expansion pods bring GPU acceleration to laptops on location. Rack mount shelves and backplanes support hot-swap drives for near continuous uptime. Modular designs ensure future proofing, letting you add bays or ports as client demands increase without disrupting current pipelines.

Pro Video PCIe Cards

PCIe cards for professional video workflows deliver fast and reliable performance for post-production, broadcast, and live environments. Engineered for high-resolution editing, colour grading, VFX, and multi-camera projects, they ensure smooth 4K, 8K, and HDR playback with minimal latency. These cards provide high-bandwidth connectivity to GPUs, storage, and I/O devices, accelerating demanding tasks such as video capture, real-time rendering, and live streaming. Perfect for Adobe Premiere Pro, DaVinci Resolve, and Avid workflows, PCIe cards optimise media pipelines while supporting professional codecs and high-throughput formats. Built for studios and professionals, they combine speed, scalability, and stability to keep projects moving efficiently.

Sonnet Allegro PCIe USB 3.0 4-Port Adaptor Card, PCIe 2.0, 10W Per PortAllegro 4-port USB 3.0 PCIe Adaptor by Sonnet LN71607
Key Specifications
- Sonnet Allegro PCIe USB 3.0 4-Port Adaptor Card
- PCIe 2.0
- 10W Per Port
Customer Review (1)
Get it Tomorrow, 06 Oct
£68.99
Finance options available when you spend over £99.00
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Sonnet Allegro Dual Port USB-C PCIe Expansion CardSonnet Allegro USB-C PCIe Dual-Port, USB 3.1 Gen 2 PCIe Expansion Card LN88149
Key Specifications
- Sonnet Allegro Dual Port USB-C PCIe Expansion Card
No customer review
£94.99
Finance options available when you spend over £99.00
Pre order
Fusion Dual 2.5" SSD Raid, Dual 2.5-inch SSD PCIe 3.0 card with hardware RAID controllerSonnet Fusion Dual 2.5" SSD Raid LN107915
Key Specifications
- Fusion Dual 2.5" SSD Raid
- Dual 2.5-inch SSD PCIe 3.0 card with hardware RAID controller
No customer review
£114.49
Pre order
Sonnet SOLO 10G PCIE CARD - 10GBASE-T Gigabit Ethernet PCI Express 3.0 Adapter Card with NBASE-T Ethernet SupportSonnet SOLO 10G PCIE Card LN90610
Key Specifications
- Sonnet SOLO 10G PCIE CARD - 10GBASE-T Gigabit Ethernet PCI Express 3.0 Adapter Card with NBASE-T Ethernet Support
Customer Review (1)
£126.49
Pre order
Sonnet Allegro USB-C 4-port PCIe CardSonnet SON-USB3C-4PME [Thunderbolt compatible] LN107913
Key Specifications
- Sonnet Allegro USB-C 4-port PCIe Card
Customer Review (1)
£164.99
ETA 1-3 days
Sonnet M.2 2x4 Low-Profile PCIe Card, PCIe 3.0 x8, RAID 0, Up to 16TBSonnet M.2 2X4 Low-Profile PCIe Card LN129506
Key Specifications
- Sonnet M.2 2x4 Low-Profile PCIe Card
- PCIe 3.0 x8
- RAID 0
- Up to 16TB
No customer review
£198.49
Pre order
Sonnet Presto 10G Base-T Ethernet 2 Port PCIe Card - Supports Transparent Failover and Link AggregationPresto 10G Base-T Ethernet 2 Port PCIe Card by Sonnet LN77364
Key Specifications
- Sonnet Presto 10G Base-T Ethernet 2 Port PCIe Card - Supports Transparent Failover and Link Aggregation
No customer review
£222.49
Pre order
Sonnet Echo Express SEL Upgrade Card - 2x Thunderbolt 3 Ports, ThunderLok 3-Compatible,Sonnet Thunderbolt 3 Upgrade Card for Echo Express SEL LN79033
Key Specifications
- Sonnet Echo Express SEL Upgrade Card - 2x Thunderbolt 3 Ports
- ThunderLok 3-Compatible
No customer review
£223.99
Pre order
HighPoint RocketStor 6661B Thunderbolt 3 to 1x PCIe x4, x8 or x16 Card External EnclosureDual T3 to 1x PCIe External Box HighPoint 6661B LN90437
Key Specifications
- HighPoint RocketStor 6661B Thunderbolt 3 to 1x PCIe x4
- x8 or x16 Card External Enclosure
Customer Review (1)
Call for price
Sonnet NVMe 4x4 PCIe 3.0 Card - Slot in 4 NVMe SSDs onto one motherboardSonnet M.2 4x4 PCIe Card - 4 NVMe SSDs at once (Silent) LN100572
Key Specifications
- Sonnet NVMe 4x4 PCIe 3.0 Card - Slot in 4 NVMe SSDs onto one motherboard
Customer Review (4)
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£346.99
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Sonnet McFiver Multifunction Adapter Card, Dual M.2 NVMe SSD Slots, 10GbE, 2x 10Gbps USB-C PortsSonnet McFiver Multifunction PCIe Adapter Card LN129585
Key Specifications
- Sonnet McFiver Multifunction Adapter Card
- Dual M.2 NVMe SSD Slots
- 10GbE
- 2x 10Gbps USB-C Ports
No customer review
£383.99
Pre order
Sonnet Allegro Pro USB-C 3.2 8-Port PCIe Adapter Card, PCIe 3.0, 7.5W Per Port, 10Gbps Per Port, 4x USB 3.2 ControllersSonnet Allegro Pro USB-C 8-Port PCIe Adapter Card LN126899
Key Specifications
- Sonnet Allegro Pro USB-C 3.2 8-Port PCIe Adapter Card
- PCIe 3.0
- 7.5W Per Port
- 10Gbps Per Port
- 4x USB 3.2 Controllers
No customer review
£454.99
Due 30th Oct
Sonnet Twin25G PCIe Card, 25GbE Dual SFP28 PCIe Adapter Card, Mac/Win/LinuxSonnet Twin25G PCIe Card LN136415
Key Specifications
- Sonnet Twin25G PCIe Card
- 25GbE Dual SFP28 PCIe Adapter Card
- Mac/Win/Linux
No customer review
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£683.99
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OWC Accelsior 8M2 PCIe Card, 8 x M.2 2280 PCIe 4.0 x4 SSD Slots, PCIe 4.0 x16, SoftRAID XT, Plug and PlayOWC Accelsior 8M2 8x M.2 NVMe to PCIe Card LN138318
Key Specifications
- OWC Accelsior 8M2 PCIe Card
- 8 x M.2 2280 PCIe 4.0 x4 SSD Slots
- PCIe 4.0 x16
- SoftRAID XT
- Plug and Play
No customer review
£827.99
ETA 1-3 days
Sonnet M.2 8x4 Silent Gen 4 PCIe Card, PCIe 4.0 x16, RAID 0/1/10, Up to 64TBSonnet M.2 8x4 Silent Gen4 PCIe Card LN138340
Key Specifications
- Sonnet M.2 8x4 Silent Gen 4 PCIe Card
- PCIe 4.0 x16
- RAID 0/1/10
- Up to 64TB
No customer review
£875.99
Pre order
ATTO Celerity FC-162P DUAL-CHANNEL 16GB/S GEN 6 FIBRE CHANNEL PCIEATTO Celerity FC-162P LN106046
Key Specifications
- ATTO Celerity FC-162P DUAL-CHANNEL 16GB/S GEN 6 FIBRE CHANNEL PCIE
No customer review
£2,040.49
ETA 5-7 days

PCIe Expansion & eGPU Enclosures

PCIe Expansion & eGPU Enclosures for professional video workflows offer editors, colourists, and VFX artists the performance and scalability needed for 4K, 6K, and 8K production. Designed for Apple Mac systems, including MacBook Pro, Mac Studio, and iMac, as well as Windows and Linux, these enclosures unlock desktop-class power through Thunderbolt or USB-C. PCIe expansion supports video capture cards, audio interfaces, storage accelerators, and other pro hardware, while eGPU enclosures deliver faster rendering, real-time playback, and GPU acceleration in apps like DaVinci Resolve, Premiere Pro, and After Effects. Perfect for studios and freelancers, they transform laptops and compact desktops into powerful, reliable production hubs for demanding creative workflows.

Sonnet DuoModo Single Module Desktop Enclosure for DuoModo Echo III/eGPU/xMac MiniSonnet DuoModo Single Module Desktop Enclosure LN118757
Key Specifications
- Sonnet DuoModo Single Module Desktop Enclosure for DuoModo Echo III/eGPU/xMac Mini
No customer review
£115.49
Pre order
Allegro Pro USB 3.2 PCIe Card (4 10Gb charging ports) [Thunderbolt compatible]Allegro Pro USB 3.2 PCIe Card (4 10Gb charging ports) LN103174
Key Specifications
- Allegro Pro USB 3.2 PCIe Card (4 10Gb charging ports) [Thunderbolt compatible]
No customer review
Get it Tomorrow, 06 Oct
£170.48
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HighPoint RocketStor 6661B Thunderbolt 3 to 1x PCIe x4, x8 or x16 Card External EnclosureDual T3 to 1x PCIe External Box HighPoint 6661B LN90437
Key Specifications
- HighPoint RocketStor 6661B Thunderbolt 3 to 1x PCIe x4
- x8 or x16 Card External Enclosure
Customer Review (1)
Call for price
OWC Mercury Helios 3S PCIe Card Expansion Solution, PCIe 3.0 x16 (x4), upto 4K@60Hz, TB3/DP1.4, Win/MacOWC Mercury Helios 3S Thunderbolt 3 Single Slot PCIe Card Expansion Solution LN125633
Key Specifications
- OWC Mercury Helios 3S PCIe Card Expansion Solution
- PCIe 3.0 x16 (x4)
- upto 4K@60Hz
- TB3/DP1.4
- Win/Mac
No customer review
£257.48
ETA 1-3 days
Sonnet Solo 10G SFP+ Fibre Optical 10GbE Thunderbolt 3 Edition Adapter (Up to 300m)Sonnet Solo 10G SFP+ Thunderbolt 3 Adapter LN99976
Key Specifications
- Sonnet Solo 10G SFP+ Fibre Optical 10GbE Thunderbolt 3 Edition Adapter (Up to 300m)
No customer review
Get it Tomorrow, 06 Oct
£336.49
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Sale
Sonnet Echo Express SEL 10GbE - 10 Gigabit Ethernet Thunderbolt 2 AdapterEcho Express SEL 10GbE Sonnet LN60511
Key Specifications
- Sonnet Echo Express SEL 10GbE - 10 Gigabit Ethernet Thunderbolt 2 Adapter
No customer review
Get it Tomorrow, 06 Oct
£359.99
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Sonnet Echo Express SE I - Thunderbolt 3 Edition, PCIe Expansion ChassisSonnet Echo Express SE I PCIe Expansion Chassis - Thunderbolt 3 Edition LN79035
Key Specifications
- Sonnet Echo Express SE I - Thunderbolt 3 Edition
- PCIe Expansion Chassis
No customer review
£437.99
Pre order
Sonnet DuoModo xMac Mini Module, Mac Mini + Thunderbolt SSD Storage Dock, 1x Thunderbolt 3, 2x USB 3.2 Type-CSonnet DuoModo xMac Mini Module LN118758
Key Specifications
- Sonnet DuoModo xMac Mini Module
- Mac Mini + Thunderbolt SSD Storage Dock
- 1x Thunderbolt 3
- 2x USB 3.2 Type-C
No customer review
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£515.99
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Sonnet eGPU Breakaway Box 750EX, Thunderbolt3 eGPU Expansion System, PCIe 3.0 x16, 4x USB3.2 Gen1, 750W PSUSonnet eGPU Breakaway Box 750EX LN113638
Key Specifications
- Sonnet eGPU Breakaway Box 750EX
- Thunderbolt3 eGPU Expansion System
- PCIe 3.0 x16
- 4x USB3.2 Gen1
- 750W PSU
Customer Review (2)
£515.99
Pre order
Sonnet Breakaway Box 850 T5 eGPU Enclosure, Thunderbolt 5, PCIe 4.0 x16, 3x USB3.2 Gen2 Type-A, 850W PSUSonnet Breakaway Box 850 T5 eGPU Enclosure LN168259
Key Specifications
- Sonnet Breakaway Box 850 T5 eGPU Enclosure
- Thunderbolt 5
- PCIe 4.0 x16
- 3x USB3.2 Gen2 Type-A
- 850W PSU
No customer review
£719.99
Pre order
Echo Express SE IIIe Thunderbolt 3 Edition - 3-Slot PCIe Card Expansion SystemSonnet Echo Express SE IIIe Thunderbolt 3 Edition LN103172
Key Specifications
- Echo Express SE IIIe Thunderbolt 3 Edition - 3-Slot PCIe Card Expansion System
No customer review
Get it Tomorrow, 06 Oct
£910.99
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Sonnet Echo II DV Thunderbolt 5 ModuleSonnet Echo II DV Thunderbolt 5 Module LN171361
Key Specifications
- Sonnet Echo II DV Thunderbolt 5 Module
No customer review
£1,513.99
Pre order
Sonnet xMac mini (2024+) Echo II DV T5 Enclosure System, 2 PCIe Slots Expansion, 2U, Thunderbolt 5Sonnet xMac mini (2024+) Echo II DV T5 Enclosure System LN171365
Key Specifications
- Sonnet xMac mini (2024+) Echo II DV T5 Enclosure System
- 2 PCIe Slots Expansion
- 2U
- Thunderbolt 5
No customer review
£2,395.99
Pre order
Sonnet xMac Studio Echo II DV T5 Enclosure System, 2 PCIe Slots Expansion, 2U, Thunderbolt 5Sonnet xMac Studio Echo II DV T5 Enclosure System LN171364
Key Specifications
- Sonnet xMac Studio Echo II DV T5 Enclosure System
- 2 PCIe Slots Expansion
- 2U
- Thunderbolt 5
No customer review
£2,395.99
Pre order

Rackmount Solutions - Computer Expansion

Elegant mounting solutions for video and computer equipment in your rackmount solution. From Apple Mac rackmount enclosures to PCIe expansion chassis, these solutions provide seamless integration for GPUs, storage, and high-speed I/O, designed for creative professionals, enterprise IT, and data-focused industries. With optimised Apple Mac enclosures and PCIe expansion, you can unlock greater performance, streamline workflows, and expand as demands grow.

Sonnet Thunderbolt AVB GE Adapter for MacSonnet Thunderbolt AVB GE Adapter for Mac LN123002
Key Specifications
- Sonnet Thunderbolt AVB GE Adapter for Mac
No customer review
£168.49
Pre order
Sonnet RackMac mini Rackmount Enclosure for the Mac mini 2018 and olderSonnet RackMac mini 2018 LN95019
Key Specifications
- Sonnet RackMac mini Rackmount Enclosure for the Mac mini 2018 and older
No customer review
£250.99
Pre order
Sonnet DuoModo Dual-Module Rackmount Enclosure for DuoModo Echo III/eGPU/xMac Mini, 2RUSonnet DuoModo Dual-Module Rackmount Enclosure LN118754
Key Specifications
- Sonnet DuoModo Dual-Module Rackmount Enclosure for DuoModo Echo III/eGPU/xMac Mini
- 2RU
No customer review
£260.99
Pre order
Sale
Sonnet Mobile Rack Kit Module Data Archiving Edition, for LTO + up to 4 SSDsSonnet Mobile Rackmount Data Archiving Kit LN60507
Key Specifications
- Sonnet Mobile Rack Kit Module Data Archiving Edition
- for LTO + up to 4 SSDs
No customer review
Get it Tomorrow, 06 Oct
£479.99
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Sonnet RackMac Studio, 3U Rackmount System for 2x Mac StudioSonnet RackMac Studio LN129507
Key Specifications
- Sonnet RackMac Studio
- 3U Rackmount System for 2x Mac Studio
No customer review
£540.49
Pre order
Sale
Sonnet Mobile Rack Kit Module Storage Expansion Edition for up to 8 SSDsSonnet Mobile Rackmount Storage Expansion Kit LN60505
Key Specifications
- Sonnet Mobile Rack Kit Module Storage Expansion Edition for up to 8 SSDs
No customer review
Get it Tomorrow, 06 Oct
£699.98
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Sonnet Xmac Studio, No Module, One Adhesive-Backed Magnet For SSDSonnet XMac Studio Enclosure With No Module LN129508
Key Specifications
- Sonnet Xmac Studio
- No Module
- One Adhesive-Backed Magnet For SSD
No customer review
£780.49
Pre order
(Open Box) Sonnet DuoModo xMac mini/eGPU Rackmount System, Mac Mini Mount + eGPU Module, PCIe 3.0 x16, 800W PSU(Open Box) Sonnet DuoModo xMac mini/eGPU Rackmount System LN129968
Key Specifications
- (Open Box) Sonnet DuoModo xMac mini/eGPU Rackmount System
- Mac Mini Mount + eGPU Module
- PCIe 3.0 x16
- 800W PSU
No customer review
Get it Tomorrow, 06 Oct
£1,249.99
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