• In Stock
  • Sold by Newegg
  • Make an Offer
  • New
Brands
Show More
Price
Show More
Type
Show More
External USB Ports
Show More
Thunderbolt 3
External 1394 Ports
Sold by
All Top Brands
Availability
Condition
Current Promotion
Discount
Useful Links
Customer Ratings
  • Featured Brands

    See Deals from Rosewill
Sort By:
View:
Supermicro AOC-SGP-i2 Gigabit Ethernet Card
Quick View
MediaTek MT7601 Wireless Card PCI E 2.4GHz 150M
Quick View
Atheros AR5B95 AR9285 802.11B/G/N Half Mini PCI-E Card
Quick View
4-bits PCI&ISA PC Analyzer Tester Diagnostic Card POST
Quick View
PCIE mSATA + M.2 B&M Key SSD NVMe Adapter 6Gb/s
Quick View
  •  
  • $21.99 
  • Free Shipping
Broadcom BCM943142Y 2.4GHz BT4.0 NGFF/M.2 WiFi Card 150M
Quick View
SATA3.0 ? to M.2 NGFF B KEY SSD NVMe adapter Card 6Gbps
Quick View
  •  
  • $15.99 
  • Free Shipping
SYBA SI-ADA40083 M.2 NGFF to 2.5" SATAIII Card with Full & Low Profile Brackets
Quick View
SYBA SI-ADA40083 M.2 NGFF to 2.5" SATAIII Card with Full & Low Profile Brackets
  • External Ports: 1 x SATA III
  • Specifications: M.2(NGFF) to SATAIII Card M.2 Specification Revision 0.9 Serial ATA Specification Revision 3.2 Supports M.2 Card Sizes: 22*30, 22*42, 22*60 Supports M.2 B Key Card Type Supports High-Speed SATA 3/6 Gbps Interface Port: Standard SATA 22 Pin Connector
  • Weight: 0.1
  • Package Contents: M.2 to SATA Adapter User Manual Set of M.2 Mounting Screws Standar Size Bracket Low Profile Bracket
  • Model #: SI-ADA40083
Dell PERC H730 - Storage Controller (RAID) - SATA 6Gb/s / SAS 12Gb/s - PCIe 3.0x8
Quick View
DELL
Dell PERC H730 - Storage Controller (RAID) - SATA 6Gb/s / SAS 12Gb/s - PCIe 3.0x8
  • External Connectors: 12Gb/s SAS Serial ATA/600
  • RAID: 0 1 5 6 10 50 60 JBOD
  • Cache Memory: 1GB
  • Model #: 405-AADX
  •  
  • $75.00 
Asus R541NA Series 15.6" Wifi Wireless Bluetooh Card WCBN611LH-AD 0C011-00061A00
Quick View
  •  
  • $19.99 
  • Free Shipping
SYBA SY-CAB40019 18" SATA to eSATA Transition Cable
Quick View
Lsi00214 (9750-8I Sgl) 8 Internal Ports Pci-E Low-Profile Sata/Sas Raid Controller
Quick View
  •  
  • $225.00 
  • Free Shipping
Supermicro RSC-R1U-E16R Riser Card
Quick View
Supermicro
Supermicro RSC-R1U-E16R Riser Card
  • Type: Riser Card
  • Compatibility: Super Micro X7DWT-INF Motherboard
  • Specifications: Expansion Slots:1 x PCI Express x16 Form Factor:1U Host Interface:SXB2
  • Model #: RSC-R1U-E16R
Supermicro AOM-S3108-H8 8-port 12Gb/s mezzanine module
Quick View
Blackmagic Design DeckLink Mini Monitor 4K PCIe Playback Card #BDLKMINIMON4K
Quick View
  •  
  • $215.00 
  • $7.85 Shipping
ASUS ROG M.2 CARD PCIE 5.0 NVME M.2 EXPANSION CARD
Quick View
ASUS
Refurbished ASUS ROG M.2 CARD PCIE 5.0 NVME M.2 EXPANSION CARD
  • Type: SSD ADAPTER
  • Model #: ROG PCIE 5.0 M.2 Card
  •  
  • $39.99 
Supermicro PCI Express x8 Riser Card
Quick View
Supermicro
Supermicro PCI Express x8 Riser Card
  • Type: Riser Card
  • Compatibility: Supermicro X7DBT Motherboard Supermicro X7DWT Motherboard Supermicro X8DTT Motherboard
  • Specifications: Expansion Slots:1 x PCI Express x8 Form Factor:1U Host Interface:PCI Express x8
  • Model #: RSC-R1U-E8R
Supermicro 12Gb/s Eight-Port SAS Internal RAID Adapter
Quick View
Supermicro
Supermicro 12Gb/s Eight-Port SAS Internal RAID Adapter
  • External USB Ports: PCI Express
  • Model #: AOC-S3008L-L8E
T93GD DELL 12Gb/s SAS HBA EXTERNAL PCI-e CONTROLLER CARD LOW PROFILE 405-AAES FS
Quick View
  •  
  • $128.00 
  • Free Shipping
SYBA PCI-Express 1-Port Parallel/Printer Card with Low Profile Bracket - RoHS Model SD-PEX10005
Quick View
Used - Very Good SYBA PCI-Express 1-Port Parallel/Printer Card with Low Profile Bracket - RoHS Model SD-PEX10005
  • Type: PCI Express to Parallel Port
  • External Ports: 1 x Parallel Port
  • Data Transfer Rate: 1.5 Mbps
  • Operating Systems Supported: Supports Windows 2000, XP 32/64-bit, Server 2003 32/64-bit, Vista 32/64-bit, Server 2008 32/64-bit
  • Model #: SD-PEX10005
SYBA SI-MPE40150 2 Ports SATA III Full Height MiniPCIE Controller Card (Jmicro Chipset)
Quick View
SYBA SI-MPE40150 2 Ports SATA III Full Height MiniPCIE Controller Card (Jmicro Chipset)

Limited time offer, ends 05/13

  • Type: MiniPCIE Controller Card
  • External Ports: 2 x SATA III Ports
  • Internal Ports: 1 x Mini PCIe Slot
  • Data Transfer Rate: 6.0 Gbps
  • Model #: SI-MPE40150
  • $19.00 - $20.40
SYBA 4 Port RS-232 DB9 Serial M.2 B+M Key Controller Card - SY-PEX15066
Quick View
SYBA 4 Port RS-232 DB9 Serial M.2 B+M Key Controller Card - SY-PEX15066
  • Type: RS-232 DB9 Serial M.2 B+M Key Controller Card
  • External Ports: 4 x Serial Ports
  • Internal Ports: 1 x M.2 B+M Key
  • Operating Systems Supported: Windows 7, 8, 10, Linux Kernal 2.6.15 , Android 1.x-5.x
  • Model #: SY-PEX15066
Intel I210T1BLK Ethernet Server Adapter I210
Quick View
  •  
  • $68.19 
  • Free Shipping
  • $63.12 - $68.19
SAS9201-8I LSI 6Gbps PCI Express 2.0 x8 9201-8i 8-Ports SAS/SATA Controller Card
Quick View
Refurbished SAS9201-8I LSI 6Gbps PCI Express 2.0 x8 9201-8i 8-Ports SAS/SATA Controller Card
  • Type: buffer_22811
  • Data Transfer Rate: 6Gbps
  • Parts: 30 Days
  • Labor: 30 Days
  • Model #: SAS9201-8I
Supermicro PCI Express Riser Card
Quick View
Supermicro
Supermicro PCI Express Riser Card
  • Type: Riser Card
  • Compatibility: Supermicro: SuperServer 6026T-URF4+ SuperServer 2026T-URF4+
  • Specifications: Expansion Slots:1 x PCI Express x8 2 x PCI Express x4 Form Factor:2U Plug-in Card Host Interface:PCI Express x16
  • Model #: RSC-R2UU-2E4E8R
SYBA 8" Molex 4-pin Male to 15-pin SATA Power Cable Model SY-PWCB-SATA
Quick View
SYBA 8" Molex 4-pin Male to 15-pin SATA Power Cable Model SY-PWCB-SATA
  • Type: PCI to SATA Card
  • Weight: 0.1
  • Model #: SY-PWCB-SATA
PCI-Express x4, 4-Port Gigabit Ethernet RJ45 Card. Support Wake-On-LAN and RealWoW! Remote Wake-Up
Quick View
  •  
  • $45.49 
  • Free Shipping
SYBA SY-PEX15019 RS-232 Serial 8-Port PCI-Express Card
Quick View
SYBA SY-PEX15019 RS-232 Serial 8-Port PCI-Express Card
  • Type: PCI Express to Serial Port Card
  • External Ports: 8 x Serial Ports
  • Data Transfer Rate: Serial Port: Up to 1 Mbps
  • Operating Systems Supported: Windows 2000, 2003 Server, XP 32/64-bit, Vista 32/64-bit
  • Model #: SY-PEX15019
IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card
Quick View
  •  
  • $33.99 
  • Free Shipping

Giving a computer additional capabilities requires fitting the computer with an add-on card, also called an expansion card, interface card or just plain card. Expansion controller cards have sockets that connect to conductors carrying data within the system. The connector you use depends on the card and computer. Cards provide communications interfaces, extra memory, video sound I/O capabilities, system interfaces for discs or tape backup devices and additional processors in general. Controller cards are an excellent example of an add-on card because the card acts as an interface for the motherboard, and other computer components like HDD, optical drives and keyboards. Add-on cards are suitable for use with printers and other devices in office environments.

Add-on Cards Improve Audio for Gaming, Movies and Music

Having a computer with a dynamite sound card or audio system makes gaming, watching movies and listening to music a lot more enjoyable and immersive. The sound card is an add-on card that facilitates each audio component, including multimedia applications such as music composition, presentations, audio editing and entertainment. Most PCs offer a standard sound experience, and improving the audio quality is simple with sound card accessories. Some standard accessories in the collection are USB audio interfaces, high-performance headphone amplifiers and virtual 7.1 channel surround sound systems. You can also add parallel printer cards to increase or upgrade the system.

PC Game Controllers Raise the Full Immersion Experience

Kicking your gaming to a whole new level of experience necessitates selecting a PC game controller that mirrors the gear handled in real-life situations. Some players feel comfortable using straightforward game controllers, like racing wheels or flight joysticks. Those who want the ultimate experience with full immersion in their favorite game need to consider empowering their system's performance. With the introduction of more elaborate controllers, such as VR headsets, rudder pedals, pro racing wheel stands and flight simulation, the upside is the new controllers require no new add-on cards. Plug the game controller USB cable into your system and Windows® 10 will detect it, and you are set up. Being immersed in your gaming scenario means using suitable PC game controllers. The performance will leave you feeling like you just flew a plane or raced a car like a professional, without leaving your house. As you track your statistics and see how much your game scores improve, empowering your system with quality PC controllers will prove worthwhile.

VR Accessories Possibilities Are Endless

Distinguishing the many uses of Virtual Reality (VR) accessories goes beyond gaming. Many fields in the educational and business community utilize VR accessories for vocational training, engineering and designing. The accessories begin with headsets, cables, connectors, 3D glasses, Bluetooth® remote controls and carrying cases. Some accessories come as a bundle, so you have gear and hardware upgrades like controller cards. Once the equipment is in place, you can begin gaming, training or virtual conceptualizing with high efficiency. The possibilities for you to produce and discover using the VR equipment and software are endless.

Bestselling Add-On Cards Reviews:

Jason
9/20/2025 5:16:14 PM
Not bad at all

“ Recommended sure. If I had a add farm this is a great value and it's not bad looking. ”

Quad M.2 NVMe to PCIe 16x Adapter, RIITOP 4 Port NVMe SSD Slot Converter to PCI-e 4.0 x16 Host Controller Expansion Card Adaptor High Speed 4x32Gbps For M Key NVMe SSD (PCI-e Bifurcation Required)
Anonymous
2/26/2025 2:59:28 PM
Too easy

“ This card is a great way to add a USB 3.0 interface to older PC's whose motherboard only supplies USB 2.0. ”

USB C PCIe Card,PCI-Express 4X to Type C USB 3.2 Gen 2 (10 Gbps) 2-Ports Expansion Card with Asmedia Chipset ASM3142 (Dual Type C) for Windows 7/8/10/Linux/MAC OS - Full & Low Profile Slot Bracket
Anonymous
11/11/2023 7:00:07 PM
Plug it in and it works. Just what I wanted.

“ Simple USB3.0 Add-on Card with 19/20 pin header. ”

4 Port PCIE PCI-e to USB 3.0 (2 x Type A+ 20 Pin Internal) Expansion Card Hub Controller PCI Express Card Adapter w/ Molex Power
Matthew W.
6/10/2023 7:37:42 AM
Easy way to add fast storage to Dell Precision Workstation

“ Better construction and heat distribution then the more expensive Dell add on card. ”

ASUS Hyper M.2 x16 PCIe 3.0 x4 Expansion Card V2 supports 4 NVMe M.2 (2242/2260/2280/22110) up to 128 Gbps for Intel VROC and AMD Ryzen Threadripper NVMe RAID