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ATTO ExpressSAS 24Gb/s SAS PCIe 4.0 Host Bus Adapters deliver next-generation SAS connectivity for high-performance direct-attached storage environments. Designed to support modern data center infrastructure, these adapters combine the impressive speed of 24Gb/s SAS with PCI Express 4.0 host connectivity, enabling dense and efficient connections to server storage, JBOD, and RAID arrays. With over 35 years of innovation in storage connectivity, ATTO continues to lead with technology engineered for reliability, scalability, and performance.
These HBAs are capable of up to 3 million 4KB IOPS, providing the throughput required for data warehousing, video on demand, high-availability environments, and performance-intensive enterprise applications. By leveraging PCIe Gen 4 architecture, ExpressSAS 24Gb models maximize bandwidth while maintaining backward compatibility where required. MiniSAS HD and SlimSAS connectors support both copper and optical cable usage with full cable management support, making these adapters ideal for dense rack-mounted servers and workstation deployments.
ATTO Advanced Data Streaming (ADS™) Technology ensures smooth and reliable data transfers by intelligently managing CPU processes to deliver consistent performance. Board-level attention to signal integrity reduces transmission errors and data corruption, making ExpressSAS 24Gb HBAs a dependable choice for mission-critical workloads. Onboard Power Center Pro RAID 0, 1, 1e and 10 support adds built-in performance and data protection for Mac, Windows, and Linux environments.
Management and diagnostics are equally robust. ATTO360™ Storage provides real-time metrics, one-click performance optimization, continuous monitoring, and proactive recommendations. Built-in ATTOExpert AI™ enhances troubleshooting capabilities, while APIs, CLI tools, and extensive logging give administrators granular control. With wide OS support and enterprise-grade reliability, ExpressSAS 24Gb HBAs deliver a future-ready SAS connectivity foundation for demanding storage architectures.
Features
| Automatic link negotiation: |
| - 24Gb/s, 12Gb/s and 6Gb/s SAS targets |
| - 6Gb/s SATA targets |
| Supports up to 512 targets, configurable to 1200 |
| Onboard ATTO PowerCenter Pro RAID 0, 1, 1e and 10 included for performance and data protection for Mac, Windows, and Linux |
| Supports Serial SCSI Protocol (SSP), SATA Tunneling Protocol (STP), SMP , SAT and direct attached SATA protocol |
| Supports T10-DIF/PI standards |
| 16MB on-board flash memory to store persistent parameters |
| Wide-port end device support |
| Support for advanced format storage media: 512e, 4Kn |
| Dual port SAS support for redundant configurations |
| Target mode driver development kit available for storage servers, storage systems and appliances |
- Product Identifiers -
MPN: ESAH-240N-000- Product Specifications -
| Bus Specifications | H240F and H24F0 - x16 PCI Express 4.0 host interface H240N - x8 PCI Express 4.0 host interface Backward compatible with x8 PCI Express 3.0 host interface PCIe low profile form factor Supports PCI Express Base Spec 4.0 Supports PCI Express CEM Spec 4.0 |
|---|---|
| Connectivity | SFF-8674 connectors externally (H24F0) SFF-8654 connectors internally (H240F and H240N) Full cable management and reporting Supports active and passive cabling Easy-to-install full height and low profile connection brackets included |
| Boot Support | UEFI v2.3.1 with HII support |
| Reliability | Average 4,500,000 Hours MTBF |
| Operating System Support | Windows® / Windows® Server macOS® SUSE Linux® Enterprise Server (SLES) Red Hat Enterprise Linux (RHEL) Rocky Linux Ubuntu Linux VMware ESXi Server® FreeBSD illumos |
| Safety & Environmental Compliance | CE and IEC 62368-1 RoHS Compliant (2011/65/EU) EU (2015/863) EMC Compliance FCC Part 15, Subpart B:2020 (Class A) ICES-003 (Canada) EN55032:2015, CISPR 32:2015 (Class A) EN55035:2017 VCCI 32-1 AS/NZ CISPR32.2015 |
| Operating Temperature | Hardware Environment: Airflow: 200 lf/m (min) recommended (H24F0, H240F), 150 lf/m (min) recommended (H240N) Temperature: 0-55° C Humidity: 10 - 90% non-condensing Storage Environment: Temperature: -40°-70°C Humidity: 5 - 95% non-condensing |
| Dimensions | Low profile: - Length = 6.600" - Height = 2.713" |
| Power | H240F - 22W (max) H24F0 - 22W (max) H240N - 22W (max) |
| Warranty | Three Year (Standard product) For OEM product contact ATTO sales for details |
| ATTO ExpressSAS® | H240F | H24F0 | H240N |
|---|---|---|---|
| Ports | 16 Internal | 16 External | 24 Internal |
| Bus Characteristics | x16 PCIe 4.0 | x16 PCIe 4.0 | x8 PCIe 4.0 |
| Connections | 2 x8 SlimSAS SFF-8654 internal | 4x4 miniSAS HD SFF-8674 external | 3 x8 SlimSAS SFF-8654 internal |
Hassle Free Returns
At Motion Media, our goal is to ensure your complete satisfaction with your purchase. If, for whatever reason, you are dissatisfied with your purchase, you may return it to Motion Media within 30 days. Claims for missing items or items damaged in transit must be received within three business days of receipt of merchandise.
Refunds on returned items will be issued in the same payment form as tendered at the time of purchase. If payment was made by credit card, once we receive the product we will credit your account. Please allow 7-10 days for a credit to appear on your credit card statement. If payment was made by check, please allow 10 business days for a refund check to be issued.
Please read all conditions below. If conditions are not met, Motion Media reserves the right to refuse the return or to charge a restocking fee of up to 25%.
How to return or exchange an item:
- In order to return an item you need to first obtain an RMA (Return Merchandise Authorization) number.
- To request an RMA number, please visit our contact page and send us an email with the request.
- To request an RMA number by phone, call Customer Service at 310-450-4000.
- Place the original package into a shipping carton.
- Include the invoice and the reason for the return. If defective, please specify the defect.
- Please do not place stickers or shipping labels on the original manufacturer's package.
- The RMA number must be clearly written on the outer box. If you received a label in the email, print the label and tape it to the carton.
- Ship via insured ground service with a tracking number. Return shipping charges are the responsibility of the customer. We are not responsible for lost or damaged packages.
- Send pre-authorized returns to:
Motion Media, LLC
Attn: RMA#XXXXX
2875 E. Patrick Lane, Suite O
Las Vegas, NV 89120
- Alternatively, you may return an item at our office at the above location, with an approved RMA.
Rules:
- All returned or exchanged items must be in new condition,
unopened in the original box, and must include all packing material, blank warranty cards, manuals, and all accessories. 15% restocking fee on any opened items. If you are going to return, do not open the box. - 25% restocking fee on LitePanels, Anton Bauer and Sachtler returns.
- Motion Media is not responsible for personal data or items left in returned merchandise.
- Defective items may be repaired or exchanged at our discretion for the same model or manufacturer's equivalent model.
- RMA numbers are valid for 10 days.
- Motion Media is not responsible for any consequential or incidental damage resulting from the sale or use of any merchandise bought from us. We are responsible for the monetary value of the merchandise only.
*No Return/Exchange On:
- No Returns on Blackmagic Design purchases.
- Any Electronically Delivered Software
- 3D Printers & Accessories
- Custom systems built or modified by Motion Media to customer's specifications
- Educational dvd's and books once unwrapped
- Motion Media Gift Cards are redeemable for merchandise only and may not be redeemed for cash.