| | Version History |  | Version | Description | Note |  | V1.3.128 | 1. Improved the compatibility with Gett Silikonmaus KH19216 mouse 2. Enhance video quality when the KH2508A/KH2516A is at daisy-chain mode.
 | Main CPU: V1.3.128 KA9120(V2.5.246)
 KA9170(V3.2.316)
 KA9520(2.4.231)
 KA9570(V3.1.302)
 KA9170B(V3.2.316)
 KA9130(V2.4.232)
 KA9140(V2.1.203)
 KA9570B(V3.1.302)
 KA7570(V1.1.107)
 KA7520(V1.1.105)
 KA7120(V2.5.246)
 KA7170(V3.3.327)
 KA7140(V1.1.101)
 KA7130(V2.4.232)
 KA7920(V1.1.101)
 KA7970(V1.1.101)
 KA7166(V1.5.146)
 KA7168(V1.5.146)
 KA7169(V1.5.146)
 KA7170_ASIC(V3.3.327)
 KA7570_ASIC(V1.1.107)
 |  | V1.3.124 | 1. Improve keyboard compatibility 2. Fix the bug of not being able to read, via KH2508A/KH2516A, the firmware version information of the dongle currently in use.
 | Main CPU: V1.3.124 KA9120(V2.5.246),
 KA9170(V3.2.316),
 KA9520(2.4.231),
 KA9570(V3.1.302),
 KA9170B(V3.2.316),
 KA9130(V2.4.232),
 KA9140(V2.1.203),
 KA9570B(V3.1.302),
 KA7570(V1.1.107),
 KA7520(V1.1.105),
 KA7120(V2.5.246),
 KA7170(V3.2.327),
 KA7140(V1.1.101),
 KA7130(V2.4.232),
 KA7920(V1.1.101),
 KA7970(V1.1.101),
 KA7166(V1.4.132),
 KA7168(V1.4.132),
 KA7169(V1.4.132),
 KA7170_ASIC(V3.3.327),
 KA7570_ASIC(V1.1.107)
 |  | V1.3.122 | 1. Improve KB/MS compatibility 2. When there is only 1 station, users can skip key in station number to switch port.
 3. Modify OSD "Product Serial Number" item to "MFG".
 | Main CPU : V1.3.122 KA9120(V2.5.246),
 KA9170(V3.2.316),
 KA9520(2.4.231),
 KA9570(V3.1.302),
 KA9170B(V3.2.316),
 KA9130(V2.4.232),
 KA9140(V2.1.203),
 KA9570B(V3.1.302),
 KA7570(V1.1.103),
 KA7520(V1.1.105),
 KA7120(V2.5.246),
 KA7170(V3.2.316),
 KA7140(V1.1.101),
 KA7130(V2.4.232),
 KA7920(V1.1.101),
 KA7970(V1.1.101),
 KA7166(V1.4.132),
 KA7168(V1.4.132),
 KA7169(V1.4.132),
 KA7170_ASIC(V3.3.326),
 KA7570_ASIC(V1.1.106)
 |  | V1.2.119 | 1. Support KA7170 ASIC and KA7570 ASIC USB KVM adapter cables 2. Improve USB devices response time
 | Main CPU : V1.2.119 KA9120(V2.5.246),
 KA9170(V3.2.316),
 KA9520(2.4.231),
 KA9570(V3.1.302),
 KA9170B(V3.2.316),
 KA9130(V2.4.232),
 KA9140(V2.1.203),
 KA9570B(V3.1.302),
 KA7570(V1.1.103),
 KA7520(V1.1.105),
 KA7120(V2.5.246),
 KA7170(V3.2.316),
 KA7140(V1.1.101),
 KA7130(V2.4.232),
 KA7920(V1.1.101),
 KA7970(V1.1.101),
 KA7166(V1.4.132),
 KA7168(V1.4.132),
 KA7169(V1.4.132),
 KA7170_ASIC(V3.3.326),
 KA7570_ASIC(V1.1.106)
 |  | V1.2.117 | 1. Fixed F/W upgrade bug in previous version 2. Each device need to upgrade itself before daisy chainin
 3. Support KA7166/KA7168/KA7169 Digital Video USB KVM Adapter
 | Main CPU: V1.2.117 KA9120(V2.5.246),
 KA9170(V3.2.316),
 KA9520(2.4.231),
 KA9570(V3.1.302),
 KA9170B(V3.2.316),
 KA9130(V2.4.232),
 KA9140(V2.1.203),
 KA9570B(V3.1.302),
 KA7570(V1.1.103),
 KA7520(V1.1.105),
 KA7120(V2.5.246),
 KA7170(V3.2.316),
 KA7140(V1.1.101),
 KA7130(V2.4.232),
 KA7920(V1.1.101),
 KA7970(V1.1.101),
 KA7166(V1.4.132),
 KA7168(V1.4.132),
 KA7169(V1.4.132)
 |  | V1.2.115 | 1. Fixed F/W upgrade bug in previous version 2. Each device need to upgrade itself before daisy chaining.
 3. F/W upgrade process
 a. user must upgrade to relay version (KH25xxA_Relay_Version_V1.2.114.exe)
 b. If the relay version have been upgraded, then user can upgrade to V1.2.115 or later version
 4. Add “PRODUCT SERIAL NUMBER function on OSD”
 5. Add “OSD Configuration Backup/Restore”
 | Main CPU: V1.2.115 KA9120: V2.5.246
 KA7120: V2.5.246
 KA9570: V3.1.302
 KA9570B: V3.1.302
 KA7520: V1.1.105
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